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Finding the Fourth Proportional to 531.41, 732.80 and 344.91

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Solution

The fourth proportional to 531.41, 732.80 and 344.91 is: 475.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.41 : 732.80 = 344.91 : x
  2. Step 2: Convert to fraction form
    531.41/732.80 = 344.91/x
  3. Step 3: Cross multiply
    531.41x = 732.80 × 344.91
  4. Step 4: Simplify right side
    531.41x = 252,747.60
  5. Step 5: Solve for x
    x = 252,747.60/531.41
  6. Step 6: Final answer
    x = 475.62

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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.