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Finding the Fourth Proportional to 616.74, 924.39 and 308.28

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Solution

The fourth proportional to 616.74, 924.39 and 308.28 is: 462.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.74 : 924.39 = 308.28 : x
  2. Step 2: Convert to fraction form
    616.74/924.39 = 308.28/x
  3. Step 3: Cross multiply
    616.74x = 924.39 × 308.28
  4. Step 4: Simplify right side
    616.74x = 284,970.95
  5. Step 5: Solve for x
    x = 284,970.95/616.74
  6. Step 6: Final answer
    x = 462.06

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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.