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Finding the Fourth Proportional to 265.68, 366.60 and 149.28

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Solution

The fourth proportional to 265.68, 366.60 and 149.28 is: 205.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.68 : 366.60 = 149.28 : x
  2. Step 2: Convert to fraction form
    265.68/366.60 = 149.28/x
  3. Step 3: Cross multiply
    265.68x = 366.60 × 149.28
  4. Step 4: Simplify right side
    265.68x = 54,726.05
  5. Step 5: Solve for x
    x = 54,726.05/265.68
  6. Step 6: Final answer
    x = 205.98

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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.