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Finding the Fourth Proportional to 531.22, 733.08 and 291.95

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Solution

The fourth proportional to 531.22, 733.08 and 291.95 is: 402.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.22 : 733.08 = 291.95 : x
  2. Step 2: Convert to fraction form
    531.22/733.08 = 291.95/x
  3. Step 3: Cross multiply
    531.22x = 733.08 × 291.95
  4. Step 4: Simplify right side
    531.22x = 214,023.30
  5. Step 5: Solve for x
    x = 214,023.30/531.22
  6. Step 6: Final answer
    x = 402.89

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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.