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Finding the Fourth Proportional to 265.50, 398.07 and 149.94

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Solution

The fourth proportional to 265.50, 398.07 and 149.94 is: 224.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.50 : 398.07 = 149.94 : x
  2. Step 2: Convert to fraction form
    265.50/398.07 = 149.94/x
  3. Step 3: Cross multiply
    265.50x = 398.07 × 149.94
  4. Step 4: Simplify right side
    265.50x = 59,686.62
  5. Step 5: Solve for x
    x = 59,686.62/265.50
  6. Step 6: Final answer
    x = 224.81

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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.