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Finding the Fourth Proportional to 261,807.70, 392,711.55 and 242,562.10

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Solution

The fourth proportional to 261,807.70, 392,711.55 and 242,562.10 is: 363,843.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,807.70 : 392,711.55 = 242,562.10 : x
  2. Step 2: Convert to fraction form
    261,807.70/392,711.55 = 242,562.10/x
  3. Step 3: Cross multiply
    261,807.70x = 392,711.55 × 242,562.10
  4. Step 4: Simplify right side
    261,807.70x = 95,256,938,262.26
  5. Step 5: Solve for x
    x = 95,256,938,262.26/261,807.70
  6. Step 6: Final answer
    x = 363,843.15

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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.