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Finding the Fourth Proportional to 244.80, 337.60 and 167.20

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Solution

The fourth proportional to 244.80, 337.60 and 167.20 is: 230.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.80 : 337.60 = 167.20 : x
  2. Step 2: Convert to fraction form
    244.80/337.60 = 167.20/x
  3. Step 3: Cross multiply
    244.80x = 337.60 × 167.20
  4. Step 4: Simplify right side
    244.80x = 56,446.72
  5. Step 5: Solve for x
    x = 56,446.72/244.80
  6. Step 6: Final answer
    x = 230.58

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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.