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Finding the Fourth Proportional to 372.90, 559.16 and 126.02

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Solution

The fourth proportional to 372.90, 559.16 and 126.02 is: 188.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.90 : 559.16 = 126.02 : x
  2. Step 2: Convert to fraction form
    372.90/559.16 = 126.02/x
  3. Step 3: Cross multiply
    372.90x = 559.16 × 126.02
  4. Step 4: Simplify right side
    372.90x = 70,461.92
  5. Step 5: Solve for x
    x = 70,461.92/372.90
  6. Step 6: Final answer
    x = 188.96

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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.