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Finding the Fourth Proportional to 408.88, 612.06 and 292.24

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Solution

The fourth proportional to 408.88, 612.06 and 292.24 is: 437.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    408.88 : 612.06 = 292.24 : x
  2. Step 2: Convert to fraction form
    408.88/612.06 = 292.24/x
  3. Step 3: Cross multiply
    408.88x = 612.06 × 292.24
  4. Step 4: Simplify right side
    408.88x = 178,868.41
  5. Step 5: Solve for x
    x = 178,868.41/408.88
  6. Step 6: Final answer
    x = 437.46

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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.