Home / 429,531.52-644,414.08-149,070.72

Finding the Fourth Proportional to 429,531.52, 644,414.08 and 149,070.72

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Solution

The fourth proportional to 429,531.52, 644,414.08 and 149,070.72 is: 223,646.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,531.52 : 644,414.08 = 149,070.72 : x
  2. Step 2: Convert to fraction form
    429,531.52/644,414.08 = 149,070.72/x
  3. Step 3: Cross multiply
    429,531.52x = 644,414.08 × 149,070.72
  4. Step 4: Simplify right side
    429,531.52x = 96,063,270,883.74
  5. Step 5: Solve for x
    x = 96,063,270,883.74/429,531.52
  6. Step 6: Final answer
    x = 223,646.62

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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.