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Finding the Fourth Proportional to 173.70, 239.55 and 160.62

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Solution

The fourth proportional to 173.70, 239.55 and 160.62 is: 221.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.70 : 239.55 = 160.62 : x
  2. Step 2: Convert to fraction form
    173.70/239.55 = 160.62/x
  3. Step 3: Cross multiply
    173.70x = 239.55 × 160.62
  4. Step 4: Simplify right side
    173.70x = 38,476.52
  5. Step 5: Solve for x
    x = 38,476.52/173.70
  6. Step 6: Final answer
    x = 221.51

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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.