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Finding the Fourth Proportional to 265.26, 398.08 and 119.04

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Solution

The fourth proportional to 265.26, 398.08 and 119.04 is: 178.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.26 : 398.08 = 119.04 : x
  2. Step 2: Convert to fraction form
    265.26/398.08 = 119.04/x
  3. Step 3: Cross multiply
    265.26x = 398.08 × 119.04
  4. Step 4: Simplify right side
    265.26x = 47,387.44
  5. Step 5: Solve for x
    x = 47,387.44/265.26
  6. Step 6: Final answer
    x = 178.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.