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Finding the Fourth Proportional to 591.36, 887.04 and 221.25

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Solution

The fourth proportional to 591.36, 887.04 and 221.25 is: 331.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.36 : 887.04 = 221.25 : x
  2. Step 2: Convert to fraction form
    591.36/887.04 = 221.25/x
  3. Step 3: Cross multiply
    591.36x = 887.04 × 221.25
  4. Step 4: Simplify right side
    591.36x = 196,254.27
  5. Step 5: Solve for x
    x = 196,254.27/591.36
  6. Step 6: Final answer
    x = 331.87

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.