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Finding the Fourth Proportional to 372.52, 561.28 and 333.20

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Solution

The fourth proportional to 372.52, 561.28 and 333.20 is: 502.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.52 : 561.28 = 333.20 : x
  2. Step 2: Convert to fraction form
    372.52/561.28 = 333.20/x
  3. Step 3: Cross multiply
    372.52x = 561.28 × 333.20
  4. Step 4: Simplify right side
    372.52x = 187,018.50
  5. Step 5: Solve for x
    x = 187,018.50/372.52
  6. Step 6: Final answer
    x = 502.04

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.