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Finding the Fourth Proportional to 275.04, 379.26 and 176.85

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Solution

The fourth proportional to 275.04, 379.26 and 176.85 is: 243.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.04 : 379.26 = 176.85 : x
  2. Step 2: Convert to fraction form
    275.04/379.26 = 176.85/x
  3. Step 3: Cross multiply
    275.04x = 379.26 × 176.85
  4. Step 4: Simplify right side
    275.04x = 67,072.13
  5. Step 5: Solve for x
    x = 67,072.13/275.04
  6. Step 6: Final answer
    x = 243.86

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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.