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Finding the Fourth Proportional to 372.56, 559.40 and 236.48

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Solution

The fourth proportional to 372.56, 559.40 and 236.48 is: 355.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.56 : 559.40 = 236.48 : x
  2. Step 2: Convert to fraction form
    372.56/559.40 = 236.48/x
  3. Step 3: Cross multiply
    372.56x = 559.40 × 236.48
  4. Step 4: Simplify right side
    372.56x = 132,286.91
  5. Step 5: Solve for x
    x = 132,286.91/372.56
  6. Step 6: Final answer
    x = 355.08

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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.