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Finding the Fourth Proportional to 296.69, 408.93 and 203.27

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Solution

The fourth proportional to 296.69, 408.93 and 203.27 is: 280.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.69 : 408.93 = 203.27 : x
  2. Step 2: Convert to fraction form
    296.69/408.93 = 203.27/x
  3. Step 3: Cross multiply
    296.69x = 408.93 × 203.27
  4. Step 4: Simplify right side
    296.69x = 83,123.20
  5. Step 5: Solve for x
    x = 83,123.20/296.69
  6. Step 6: Final answer
    x = 280.17

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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.