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Finding the Fourth Proportional to 628,682.88, 943,015.08 and 155,368.24

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Solution

The fourth proportional to 628,682.88, 943,015.08 and 155,368.24 is: 233,050.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,682.88 : 943,015.08 = 155,368.24 : x
  2. Step 2: Convert to fraction form
    628,682.88/943,015.08 = 155,368.24/x
  3. Step 3: Cross multiply
    628,682.88x = 943,015.08 × 155,368.24
  4. Step 4: Simplify right side
    628,682.88x = 146,514,593,273.06
  5. Step 5: Solve for x
    x = 146,514,593,273.06/628,682.88
  6. Step 6: Final answer
    x = 233,050.08

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.