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Finding the Fourth Proportional to 422.77, 583.37 and 236.22

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Solution

The fourth proportional to 422.77, 583.37 and 236.22 is: 325.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    422.77 : 583.37 = 236.22 : x
  2. Step 2: Convert to fraction form
    422.77/583.37 = 236.22/x
  3. Step 3: Cross multiply
    422.77x = 583.37 × 236.22
  4. Step 4: Simplify right side
    422.77x = 137,799.56
  5. Step 5: Solve for x
    x = 137,799.56/422.77
  6. Step 6: Final answer
    x = 325.95

Related Problems

Find fourth proportional to 211.38, 291.68 and 118.11
Half scale
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Double scale
Find fourth proportional to 423.77, 584.74 and 237.22
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.