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Finding the Fourth Proportional to 630.12, 944.40 and 337.20

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Solution

The fourth proportional to 630.12, 944.40 and 337.20 is: 505.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.12 : 944.40 = 337.20 : x
  2. Step 2: Convert to fraction form
    630.12/944.40 = 337.20/x
  3. Step 3: Cross multiply
    630.12x = 944.40 × 337.20
  4. Step 4: Simplify right side
    630.12x = 318,451.68
  5. Step 5: Solve for x
    x = 318,451.68/630.12
  6. Step 6: Final answer
    x = 505.38

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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.