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Finding the Fourth Proportional to 436,695.76, 655,344.28 and 152,387.92

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Solution

The fourth proportional to 436,695.76, 655,344.28 and 152,387.92 is: 228,686.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,695.76 : 655,344.28 = 152,387.92 : x
  2. Step 2: Convert to fraction form
    436,695.76/655,344.28 = 152,387.92/x
  3. Step 3: Cross multiply
    436,695.76x = 655,344.28 × 152,387.92
  4. Step 4: Simplify right side
    436,695.76x = 99,866,551,713.10
  5. Step 5: Solve for x
    x = 99,866,551,713.10/436,695.76
  6. Step 6: Final answer
    x = 228,686.79

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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.