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Finding the Fourth Proportional to 275.60, 380.41 and 177.62

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Solution

The fourth proportional to 275.60, 380.41 and 177.62 is: 245.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.60 : 380.41 = 177.62 : x
  2. Step 2: Convert to fraction form
    275.60/380.41 = 177.62/x
  3. Step 3: Cross multiply
    275.60x = 380.41 × 177.62
  4. Step 4: Simplify right side
    275.60x = 67,566.08
  5. Step 5: Solve for x
    x = 67,566.08/275.60
  6. Step 6: Final answer
    x = 245.16

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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.