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Finding the Fourth Proportional to 431,854.12, 595,959.72 and 240,879.88

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Solution

The fourth proportional to 431,854.12, 595,959.72 and 240,879.88 is: 332,414.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,854.12 : 595,959.72 = 240,879.88 : x
  2. Step 2: Convert to fraction form
    431,854.12/595,959.72 = 240,879.88/x
  3. Step 3: Cross multiply
    431,854.12x = 595,959.72 × 240,879.88
  4. Step 4: Simplify right side
    431,854.12x = 143,554,705,838.43
  5. Step 5: Solve for x
    x = 143,554,705,838.43/431,854.12
  6. Step 6: Final answer
    x = 332,414.81

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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.