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Finding the Fourth Proportional to 616.92, 925.55 and 356.45

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Solution

The fourth proportional to 616.92, 925.55 and 356.45 is: 534.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.92 : 925.55 = 356.45 : x
  2. Step 2: Convert to fraction form
    616.92/925.55 = 356.45/x
  3. Step 3: Cross multiply
    616.92x = 925.55 × 356.45
  4. Step 4: Simplify right side
    616.92x = 329,913.43
  5. Step 5: Solve for x
    x = 329,913.43/616.92
  6. Step 6: Final answer
    x = 534.78

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1.5x scale

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.