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Finding the Fourth Proportional to 250,129.47, 375,204.62 and 72,636.51

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Solution

The fourth proportional to 250,129.47, 375,204.62 and 72,636.51 is: 108,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,129.47 : 375,204.62 = 72,636.51 : x
  2. Step 2: Convert to fraction form
    250,129.47/375,204.62 = 72,636.51/x
  3. Step 3: Cross multiply
    250,129.47x = 375,204.62 × 72,636.51
  4. Step 4: Simplify right side
    250,129.47x = 27,253,554,132.68
  5. Step 5: Solve for x
    x = 27,253,554,132.68/250,129.47
  6. Step 6: Final answer
    x = 108,957.79

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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.