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Finding the Fourth Proportional to 402.48, 600.80 and 372.42

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Solution

The fourth proportional to 402.48, 600.80 and 372.42 is: 555.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.48 : 600.80 = 372.42 : x
  2. Step 2: Convert to fraction form
    402.48/600.80 = 372.42/x
  3. Step 3: Cross multiply
    402.48x = 600.80 × 372.42
  4. Step 4: Simplify right side
    402.48x = 223,746.93
  5. Step 5: Solve for x
    x = 223,746.93/402.48
  6. Step 6: Final answer
    x = 555.93

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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.