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Finding the Fourth Proportional to 247.48, 341.24 and 164.40

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Solution

The fourth proportional to 247.48, 341.24 and 164.40 is: 226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.48 : 341.24 = 164.40 : x
  2. Step 2: Convert to fraction form
    247.48/341.24 = 164.40/x
  3. Step 3: Cross multiply
    247.48x = 341.24 × 164.40
  4. Step 4: Simplify right side
    247.48x = 56,099.86
  5. Step 5: Solve for x
    x = 56,099.86/247.48
  6. Step 6: Final answer
    x = 226.68

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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.