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Finding the Fourth Proportional to 422.71, 583.34 and 265.37

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Solution

The fourth proportional to 422.71, 583.34 and 265.37 is: 366.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    422.71 : 583.34 = 265.37 : x
  2. Step 2: Convert to fraction form
    422.71/583.34 = 265.37/x
  3. Step 3: Cross multiply
    422.71x = 583.34 × 265.37
  4. Step 4: Simplify right side
    422.71x = 154,796.69
  5. Step 5: Solve for x
    x = 154,796.69/422.71
  6. Step 6: Final answer
    x = 366.20

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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.