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Finding the Fourth Proportional to 424,882.87, 636,406.88 and 199,906.18

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Solution

The fourth proportional to 424,882.87, 636,406.88 and 199,906.18 is: 299,427.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,882.87 : 636,406.88 = 199,906.18 : x
  2. Step 2: Convert to fraction form
    424,882.87/636,406.88 = 199,906.18/x
  3. Step 3: Cross multiply
    424,882.87x = 636,406.88 × 199,906.18
  4. Step 4: Simplify right side
    424,882.87x = 127,221,665,715.97
  5. Step 5: Solve for x
    x = 127,221,665,715.97/424,882.87
  6. Step 6: Final answer
    x = 299,427.62

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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.