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Finding the Fourth Proportional to 633.06, 944.42 and 615.42

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Solution

The fourth proportional to 633.06, 944.42 and 615.42 is: 918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.06 : 944.42 = 615.42 : x
  2. Step 2: Convert to fraction form
    633.06/944.42 = 615.42/x
  3. Step 3: Cross multiply
    633.06x = 944.42 × 615.42
  4. Step 4: Simplify right side
    633.06x = 581,211.88
  5. Step 5: Solve for x
    x = 581,211.88/633.06
  6. Step 6: Final answer
    x = 918.10

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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.