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Finding the Fourth Proportional to 173.76, 260.76 and 101.66

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Solution

The fourth proportional to 173.76, 260.76 and 101.66 is: 152.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.76 : 260.76 = 101.66 : x
  2. Step 2: Convert to fraction form
    173.76/260.76 = 101.66/x
  3. Step 3: Cross multiply
    173.76x = 260.76 × 101.66
  4. Step 4: Simplify right side
    173.76x = 26,508.86
  5. Step 5: Solve for x
    x = 26,508.86/173.76
  6. Step 6: Final answer
    x = 152.56

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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.