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Finding the Fourth Proportional to 633.31, 944.79 and 616.30

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Solution

The fourth proportional to 633.31, 944.79 and 616.30 is: 919.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.31 : 944.79 = 616.30 : x
  2. Step 2: Convert to fraction form
    633.31/944.79 = 616.30/x
  3. Step 3: Cross multiply
    633.31x = 944.79 × 616.30
  4. Step 4: Simplify right side
    633.31x = 582,274.08
  5. Step 5: Solve for x
    x = 582,274.08/633.31
  6. Step 6: Final answer
    x = 919.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.