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Finding the Fourth Proportional to 372.50, 558.56 and 125.63

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Solution

The fourth proportional to 372.50, 558.56 and 125.63 is: 188.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.50 : 558.56 = 125.63 : x
  2. Step 2: Convert to fraction form
    372.50/558.56 = 125.63/x
  3. Step 3: Cross multiply
    372.50x = 558.56 × 125.63
  4. Step 4: Simplify right side
    372.50x = 70,169.41
  5. Step 5: Solve for x
    x = 70,169.41/372.50
  6. Step 6: Final answer
    x = 188.37

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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.