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Finding the Fourth Proportional to 542.10, 748 and 332.32

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Solution

The fourth proportional to 542.10, 748 and 332.32 is: 458.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    542.10 : 748 = 332.32 : x
  2. Step 2: Convert to fraction form
    542.10/748 = 332.32/x
  3. Step 3: Cross multiply
    542.10x = 748 × 332.32
  4. Step 4: Simplify right side
    542.10x = 248,575.36
  5. Step 5: Solve for x
    x = 248,575.36/542.10
  6. Step 6: Final answer
    x = 458.54

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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.