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Finding the Fourth Proportional to 247.48, 341.58 and 173.81

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Solution

The fourth proportional to 247.48, 341.58 and 173.81 is: 239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.48 : 341.58 = 173.81 : x
  2. Step 2: Convert to fraction form
    247.48/341.58 = 173.81/x
  3. Step 3: Cross multiply
    247.48x = 341.58 × 173.81
  4. Step 4: Simplify right side
    247.48x = 59,370.87
  5. Step 5: Solve for x
    x = 59,370.87/247.48
  6. Step 6: Final answer
    x = 239.90

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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.