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Finding the Fourth Proportional to 360,017.63, 496,814.70 and 198,869.21

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Solution

The fourth proportional to 360,017.63, 496,814.70 and 198,869.21 is: 274,434.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,017.63 : 496,814.70 = 198,869.21 : x
  2. Step 2: Convert to fraction form
    360,017.63/496,814.70 = 198,869.21/x
  3. Step 3: Cross multiply
    360,017.63x = 496,814.70 × 198,869.21
  4. Step 4: Simplify right side
    360,017.63x = 98,801,146,905.39
  5. Step 5: Solve for x
    x = 98,801,146,905.39/360,017.63
  6. Step 6: Final answer
    x = 274,434.19

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.