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Finding the Fourth Proportional to 173.95, 240.18 and 124.85

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Solution

The fourth proportional to 173.95, 240.18 and 124.85 is: 172.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.95 : 240.18 = 124.85 : x
  2. Step 2: Convert to fraction form
    173.95/240.18 = 124.85/x
  3. Step 3: Cross multiply
    173.95x = 240.18 × 124.85
  4. Step 4: Simplify right side
    173.95x = 29,986.47
  5. Step 5: Solve for x
    x = 29,986.47/173.95
  6. Step 6: Final answer
    x = 172.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.