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Finding the Fourth Proportional to 353.28, 527.70 and 236.76

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Solution

The fourth proportional to 353.28, 527.70 and 236.76 is: 353.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.28 : 527.70 = 236.76 : x
  2. Step 2: Convert to fraction form
    353.28/527.70 = 236.76/x
  3. Step 3: Cross multiply
    353.28x = 527.70 × 236.76
  4. Step 4: Simplify right side
    353.28x = 124,938.25
  5. Step 5: Solve for x
    x = 124,938.25/353.28
  6. Step 6: Final answer
    x = 353.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.