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Finding the Fourth Proportional to 265.11, 395.82 and 248.70

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Solution

The fourth proportional to 265.11, 395.82 and 248.70 is: 371.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.11 : 395.82 = 248.70 : x
  2. Step 2: Convert to fraction form
    265.11/395.82 = 248.70/x
  3. Step 3: Cross multiply
    265.11x = 395.82 × 248.70
  4. Step 4: Simplify right side
    265.11x = 98,440.43
  5. Step 5: Solve for x
    x = 98,440.43/265.11
  6. Step 6: Final answer
    x = 371.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.