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Finding the Fourth Proportional to 299.52, 451.32 and 292.20

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Solution

The fourth proportional to 299.52, 451.32 and 292.20 is: 440.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.52 : 451.32 = 292.20 : x
  2. Step 2: Convert to fraction form
    299.52/451.32 = 292.20/x
  3. Step 3: Cross multiply
    299.52x = 451.32 × 292.20
  4. Step 4: Simplify right side
    299.52x = 131,875.70
  5. Step 5: Solve for x
    x = 131,875.70/299.52
  6. Step 6: Final answer
    x = 440.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.