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Finding the Fourth Proportional to 669.38, 1,003.98 and 182.48

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Solution

The fourth proportional to 669.38, 1,003.98 and 182.48 is: 273.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    669.38 : 1,003.98 = 182.48 : x
  2. Step 2: Convert to fraction form
    669.38/1,003.98 = 182.48/x
  3. Step 3: Cross multiply
    669.38x = 1,003.98 × 182.48
  4. Step 4: Simplify right side
    669.38x = 183,206.27
  5. Step 5: Solve for x
    x = 183,206.27/669.38
  6. Step 6: Final answer
    x = 273.70

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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.