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Finding the Fourth Proportional to 265.90, 366.91 and 147.87

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Solution

The fourth proportional to 265.90, 366.91 and 147.87 is: 204.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.90 : 366.91 = 147.87 : x
  2. Step 2: Convert to fraction form
    265.90/366.91 = 147.87/x
  3. Step 3: Cross multiply
    265.90x = 366.91 × 147.87
  4. Step 4: Simplify right side
    265.90x = 54,254.98
  5. Step 5: Solve for x
    x = 54,254.98/265.90
  6. Step 6: Final answer
    x = 204.04

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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.