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Finding the Fourth Proportional to 296.46, 444.65 and 142.29

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Solution

The fourth proportional to 296.46, 444.65 and 142.29 is: 213.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.46 : 444.65 = 142.29 : x
  2. Step 2: Convert to fraction form
    296.46/444.65 = 142.29/x
  3. Step 3: Cross multiply
    296.46x = 444.65 × 142.29
  4. Step 4: Simplify right side
    296.46x = 63,266.31
  5. Step 5: Solve for x
    x = 63,266.31/296.46
  6. Step 6: Final answer
    x = 213.41

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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.