Home / 231,566.40-319,577.04-129,600.72

Finding the Fourth Proportional to 231,566.40, 319,577.04 and 129,600.72

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Solution

The fourth proportional to 231,566.40, 319,577.04 and 129,600.72 is: 178,857.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,566.40 : 319,577.04 = 129,600.72 : x
  2. Step 2: Convert to fraction form
    231,566.40/319,577.04 = 129,600.72/x
  3. Step 3: Cross multiply
    231,566.40x = 319,577.04 × 129,600.72
  4. Step 4: Simplify right side
    231,566.40x = 41,417,414,479.47
  5. Step 5: Solve for x
    x = 41,417,414,479.47/231,566.40
  6. Step 6: Final answer
    x = 178,857.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.