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Finding the Fourth Proportional to 734.27, 1,101.45 and 247.66

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Solution

The fourth proportional to 734.27, 1,101.45 and 247.66 is: 371.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    734.27 : 1,101.45 = 247.66 : x
  2. Step 2: Convert to fraction form
    734.27/1,101.45 = 247.66/x
  3. Step 3: Cross multiply
    734.27x = 1,101.45 × 247.66
  4. Step 4: Simplify right side
    734.27x = 272,781.89
  5. Step 5: Solve for x
    x = 272,781.89/734.27
  6. Step 6: Final answer
    x = 371.50

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Double scale
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1.5x scale

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.