Home / 385,248.43-531,613.92-215,449.75

Finding the Fourth Proportional to 385,248.43, 531,613.92 and 215,449.75

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Solution

The fourth proportional to 385,248.43, 531,613.92 and 215,449.75 is: 297,304.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,248.43 : 531,613.92 = 215,449.75 : x
  2. Step 2: Convert to fraction form
    385,248.43/531,613.92 = 215,449.75/x
  3. Step 3: Cross multiply
    385,248.43x = 531,613.92 × 215,449.75
  4. Step 4: Simplify right side
    385,248.43x = 114,536,086,160.52
  5. Step 5: Solve for x
    x = 114,536,086,160.52/385,248.43
  6. Step 6: Final answer
    x = 297,304.49

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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.