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Finding the Fourth Proportional to 173.29, 259.85 and 118.53

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Solution

The fourth proportional to 173.29, 259.85 and 118.53 is: 177.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.29 : 259.85 = 118.53 : x
  2. Step 2: Convert to fraction form
    173.29/259.85 = 118.53/x
  3. Step 3: Cross multiply
    173.29x = 259.85 × 118.53
  4. Step 4: Simplify right side
    173.29x = 30,800.02
  5. Step 5: Solve for x
    x = 30,800.02/173.29
  6. Step 6: Final answer
    x = 177.74

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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.