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Finding the Fourth Proportional to 616.03, 925.39 and 454.75

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Solution

The fourth proportional to 616.03, 925.39 and 454.75 is: 683.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.03 : 925.39 = 454.75 : x
  2. Step 2: Convert to fraction form
    616.03/925.39 = 454.75/x
  3. Step 3: Cross multiply
    616.03x = 925.39 × 454.75
  4. Step 4: Simplify right side
    616.03x = 420,816.48
  5. Step 5: Solve for x
    x = 420,816.48/616.03
  6. Step 6: Final answer
    x = 683.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.