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Finding the Fourth Proportional to 266.13, 366.95 and 247.68

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Solution

The fourth proportional to 266.13, 366.95 and 247.68 is: 341.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.13 : 366.95 = 247.68 : x
  2. Step 2: Convert to fraction form
    266.13/366.95 = 247.68/x
  3. Step 3: Cross multiply
    266.13x = 366.95 × 247.68
  4. Step 4: Simplify right side
    266.13x = 90,886.80
  5. Step 5: Solve for x
    x = 90,886.80/266.13
  6. Step 6: Final answer
    x = 341.51

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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.