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Finding the Fourth Proportional to 372.48, 557.91 and 177.19

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Solution

The fourth proportional to 372.48, 557.91 and 177.19 is: 265.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.48 : 557.91 = 177.19 : x
  2. Step 2: Convert to fraction form
    372.48/557.91 = 177.19/x
  3. Step 3: Cross multiply
    372.48x = 557.91 × 177.19
  4. Step 4: Simplify right side
    372.48x = 98,854.68
  5. Step 5: Solve for x
    x = 98,854.68/372.48
  6. Step 6: Final answer
    x = 265.40

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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.