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Finding the Fourth Proportional to 542.08, 748.09 and 332.18

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Solution

The fourth proportional to 542.08, 748.09 and 332.18 is: 458.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    542.08 : 748.09 = 332.18 : x
  2. Step 2: Convert to fraction form
    542.08/748.09 = 332.18/x
  3. Step 3: Cross multiply
    542.08x = 748.09 × 332.18
  4. Step 4: Simplify right side
    542.08x = 248,502.36
  5. Step 5: Solve for x
    x = 248,502.36/542.08
  6. Step 6: Final answer
    x = 458.43

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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.