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Finding the Fourth Proportional to 422.76, 583.27 and 265.42

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Solution

The fourth proportional to 422.76, 583.27 and 265.42 is: 366.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    422.76 : 583.27 = 265.42 : x
  2. Step 2: Convert to fraction form
    422.76/583.27 = 265.42/x
  3. Step 3: Cross multiply
    422.76x = 583.27 × 265.42
  4. Step 4: Simplify right side
    422.76x = 154,811.52
  5. Step 5: Solve for x
    x = 154,811.52/422.76
  6. Step 6: Final answer
    x = 366.19

Related Problems

Find fourth proportional to 211.38, 291.64 and 132.71
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Double scale
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Similar ratio
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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.