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Finding the Fourth Proportional to 616.31, 921.73 and 468.38

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Solution

The fourth proportional to 616.31, 921.73 and 468.38 is: 700.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.31 : 921.73 = 468.38 : x
  2. Step 2: Convert to fraction form
    616.31/921.73 = 468.38/x
  3. Step 3: Cross multiply
    616.31x = 921.73 × 468.38
  4. Step 4: Simplify right side
    616.31x = 431,721.91
  5. Step 5: Solve for x
    x = 431,721.91/616.31
  6. Step 6: Final answer
    x = 700.50

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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.