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Finding the Fourth Proportional to 437,425.47, 656,138.16 and 105,001.47

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Solution

The fourth proportional to 437,425.47, 656,138.16 and 105,001.47 is: 157,502.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,425.47 : 656,138.16 = 105,001.47 : x
  2. Step 2: Convert to fraction form
    437,425.47/656,138.16 = 105,001.47/x
  3. Step 3: Cross multiply
    437,425.47x = 656,138.16 × 105,001.47
  4. Step 4: Simplify right side
    437,425.47x = 68,895,471,323.10
  5. Step 5: Solve for x
    x = 68,895,471,323.10/437,425.47
  6. Step 6: Final answer
    x = 157,502.19

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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.