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Finding the Fourth Proportional to 265.76, 398.52 and 101.26

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Solution

The fourth proportional to 265.76, 398.52 and 101.26 is: 151.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.76 : 398.52 = 101.26 : x
  2. Step 2: Convert to fraction form
    265.76/398.52 = 101.26/x
  3. Step 3: Cross multiply
    265.76x = 398.52 × 101.26
  4. Step 4: Simplify right side
    265.76x = 40,354.14
  5. Step 5: Solve for x
    x = 40,354.14/265.76
  6. Step 6: Final answer
    x = 151.84

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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.