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Finding the Fourth Proportional to 372.02, 557.48 and 331.52

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Solution

The fourth proportional to 372.02, 557.48 and 331.52 is: 496.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.02 : 557.48 = 331.52 : x
  2. Step 2: Convert to fraction form
    372.02/557.48 = 331.52/x
  3. Step 3: Cross multiply
    372.02x = 557.48 × 331.52
  4. Step 4: Simplify right side
    372.02x = 184,815.77
  5. Step 5: Solve for x
    x = 184,815.77/372.02
  6. Step 6: Final answer
    x = 496.79

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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.