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Finding the Fourth Proportional to 402.17, 600.34 and 372.11

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Solution

The fourth proportional to 402.17, 600.34 and 372.11 is: 555.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.17 : 600.34 = 372.11 : x
  2. Step 2: Convert to fraction form
    402.17/600.34 = 372.11/x
  3. Step 3: Cross multiply
    402.17x = 600.34 × 372.11
  4. Step 4: Simplify right side
    402.17x = 223,392.52
  5. Step 5: Solve for x
    x = 223,392.52/402.17
  6. Step 6: Final answer
    x = 555.47

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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.