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Finding the Fourth Proportional to 316,159.93, 474,240.71 and 129,171.43

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Solution

The fourth proportional to 316,159.93, 474,240.71 and 129,171.43 is: 193,757.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,159.93 : 474,240.71 = 129,171.43 : x
  2. Step 2: Convert to fraction form
    316,159.93/474,240.71 = 129,171.43/x
  3. Step 3: Cross multiply
    316,159.93x = 474,240.71 × 129,171.43
  4. Step 4: Simplify right side
    316,159.93x = 61,258,350,674.92
  5. Step 5: Solve for x
    x = 61,258,350,674.92/316,159.93
  6. Step 6: Final answer
    x = 193,757.48

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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.