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Finding the Fourth Proportional to 542.93, 747.50 and 459.90

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Solution

The fourth proportional to 542.93, 747.50 and 459.90 is: 633.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    542.93 : 747.50 = 459.90 : x
  2. Step 2: Convert to fraction form
    542.93/747.50 = 459.90/x
  3. Step 3: Cross multiply
    542.93x = 747.50 × 459.90
  4. Step 4: Simplify right side
    542.93x = 343,772.95
  5. Step 5: Solve for x
    x = 343,772.95/542.93
  6. Step 6: Final answer
    x = 633.19

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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.