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Finding the Fourth Proportional to 488.77, 674.46 and 267.71

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Solution

The fourth proportional to 488.77, 674.46 and 267.71 is: 369.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.77 : 674.46 = 267.71 : x
  2. Step 2: Convert to fraction form
    488.77/674.46 = 267.71/x
  3. Step 3: Cross multiply
    488.77x = 674.46 × 267.71
  4. Step 4: Simplify right side
    488.77x = 180,556.31
  5. Step 5: Solve for x
    x = 180,556.31/488.77
  6. Step 6: Final answer
    x = 369.41

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Find fourth proportional to 244.38, 337.23 and 133.85
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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.