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Finding the Fourth Proportional to 542.08, 746.88 and 453.24

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Solution

The fourth proportional to 542.08, 746.88 and 453.24 is: 624.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    542.08 : 746.88 = 453.24 : x
  2. Step 2: Convert to fraction form
    542.08/746.88 = 453.24/x
  3. Step 3: Cross multiply
    542.08x = 746.88 × 453.24
  4. Step 4: Simplify right side
    542.08x = 338,515.89
  5. Step 5: Solve for x
    x = 338,515.89/542.08
  6. Step 6: Final answer
    x = 624.48

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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.