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Finding the Fourth Proportional to 275.14, 379.48 and 181.74

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Solution

The fourth proportional to 275.14, 379.48 and 181.74 is: 250.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.14 : 379.48 = 181.74 : x
  2. Step 2: Convert to fraction form
    275.14/379.48 = 181.74/x
  3. Step 3: Cross multiply
    275.14x = 379.48 × 181.74
  4. Step 4: Simplify right side
    275.14x = 68,966.70
  5. Step 5: Solve for x
    x = 68,966.70/275.14
  6. Step 6: Final answer
    x = 250.66

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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.