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Finding the Fourth Proportional to 343,067.28, 514,635.84 and 118,398.48

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Solution

The fourth proportional to 343,067.28, 514,635.84 and 118,398.48 is: 177,609.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,067.28 : 514,635.84 = 118,398.48 : x
  2. Step 2: Convert to fraction form
    343,067.28/514,635.84 = 118,398.48/x
  3. Step 3: Cross multiply
    343,067.28x = 514,635.84 × 118,398.48
  4. Step 4: Simplify right side
    343,067.28x = 60,932,101,209.52
  5. Step 5: Solve for x
    x = 60,932,101,209.52/343,067.28
  6. Step 6: Final answer
    x = 177,609.77

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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.