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Finding the Fourth Proportional to 265.22, 366.02 and 148.78

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Solution

The fourth proportional to 265.22, 366.02 and 148.78 is: 205.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.22 : 366.02 = 148.78 : x
  2. Step 2: Convert to fraction form
    265.22/366.02 = 148.78/x
  3. Step 3: Cross multiply
    265.22x = 366.02 × 148.78
  4. Step 4: Simplify right side
    265.22x = 54,456.73
  5. Step 5: Solve for x
    x = 54,456.73/265.22
  6. Step 6: Final answer
    x = 205.33

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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.