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Finding the Fourth Proportional to 490,585.19, 735,877.79 and 153,652.20

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Solution

The fourth proportional to 490,585.19, 735,877.79 and 153,652.20 is: 230,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,585.19 : 735,877.79 = 153,652.20 : x
  2. Step 2: Convert to fraction form
    490,585.19/735,877.79 = 153,652.20/x
  3. Step 3: Cross multiply
    490,585.19x = 735,877.79 × 153,652.20
  4. Step 4: Simplify right side
    490,585.19x = 113,069,240,596.38
  5. Step 5: Solve for x
    x = 113,069,240,596.38/490,585.19
  6. Step 6: Final answer
    x = 230,478.30

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.