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Finding the Fourth Proportional to 424,025.29, 636,069.08 and 157,785.78

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Solution

The fourth proportional to 424,025.29, 636,069.08 and 157,785.78 is: 236,690.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,025.29 : 636,069.08 = 157,785.78 : x
  2. Step 2: Convert to fraction form
    424,025.29/636,069.08 = 157,785.78/x
  3. Step 3: Cross multiply
    424,025.29x = 636,069.08 × 157,785.78
  4. Step 4: Simplify right side
    424,025.29x = 100,362,656,316.15
  5. Step 5: Solve for x
    x = 100,362,656,316.15/424,025.29
  6. Step 6: Final answer
    x = 236,690.26

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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.