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Finding the Fourth Proportional to 173.48, 260.46 and 149.42

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Solution

The fourth proportional to 173.48, 260.46 and 149.42 is: 224.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.48 : 260.46 = 149.42 : x
  2. Step 2: Convert to fraction form
    173.48/260.46 = 149.42/x
  3. Step 3: Cross multiply
    173.48x = 260.46 × 149.42
  4. Step 4: Simplify right side
    173.48x = 38,917.93
  5. Step 5: Solve for x
    x = 38,917.93/173.48
  6. Step 6: Final answer
    x = 224.34

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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.