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Finding the Fourth Proportional to 173.99, 240.10 and 108.49

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Solution

The fourth proportional to 173.99, 240.10 and 108.49 is: 149.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.99 : 240.10 = 108.49 : x
  2. Step 2: Convert to fraction form
    173.99/240.10 = 108.49/x
  3. Step 3: Cross multiply
    173.99x = 240.10 × 108.49
  4. Step 4: Simplify right side
    173.99x = 26,048.45
  5. Step 5: Solve for x
    x = 26,048.45/173.99
  6. Step 6: Final answer
    x = 149.71

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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.