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Finding the Fourth Proportional to 372.97, 559.45 and 291.88

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Solution

The fourth proportional to 372.97, 559.45 and 291.88 is: 437.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.97 : 559.45 = 291.88 : x
  2. Step 2: Convert to fraction form
    372.97/559.45 = 291.88/x
  3. Step 3: Cross multiply
    372.97x = 559.45 × 291.88
  4. Step 4: Simplify right side
    372.97x = 163,289.47
  5. Step 5: Solve for x
    x = 163,289.47/372.97
  6. Step 6: Final answer
    x = 437.81

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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.