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Finding the Fourth Proportional to 296.28, 443.70 and 204.72

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Solution

The fourth proportional to 296.28, 443.70 and 204.72 is: 306.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.28 : 443.70 = 204.72 : x
  2. Step 2: Convert to fraction form
    296.28/443.70 = 204.72/x
  3. Step 3: Cross multiply
    296.28x = 443.70 × 204.72
  4. Step 4: Simplify right side
    296.28x = 90,834.26
  5. Step 5: Solve for x
    x = 90,834.26/296.28
  6. Step 6: Final answer
    x = 306.58

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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.