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Finding the Fourth Proportional to 487,404.88, 731,119.88 and 231,177.58

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Solution

The fourth proportional to 487,404.88, 731,119.88 and 231,177.58 is: 346,772.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,404.88 : 731,119.88 = 231,177.58 : x
  2. Step 2: Convert to fraction form
    487,404.88/731,119.88 = 231,177.58/x
  3. Step 3: Cross multiply
    487,404.88x = 731,119.88 × 231,177.58
  4. Step 4: Simplify right side
    487,404.88x = 169,018,524,548.29
  5. Step 5: Solve for x
    x = 169,018,524,548.29/487,404.88
  6. Step 6: Final answer
    x = 346,772.33

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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.