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Finding the Fourth Proportional to 191,489.76, 287,275.92 and 95,479.32

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Solution

The fourth proportional to 191,489.76, 287,275.92 and 95,479.32 is: 143,239.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,489.76 : 287,275.92 = 95,479.32 : x
  2. Step 2: Convert to fraction form
    191,489.76/287,275.92 = 95,479.32/x
  3. Step 3: Cross multiply
    191,489.76x = 287,275.92 × 95,479.32
  4. Step 4: Simplify right side
    191,489.76x = 27,428,909,493.97
  5. Step 5: Solve for x
    x = 27,428,909,493.97/191,489.76
  6. Step 6: Final answer
    x = 143,239.56

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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.