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Finding the Fourth Proportional to 462.24, 637.98 and 329.82

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Solution

The fourth proportional to 462.24, 637.98 and 329.82 is: 455.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.24 : 637.98 = 329.82 : x
  2. Step 2: Convert to fraction form
    462.24/637.98 = 329.82/x
  3. Step 3: Cross multiply
    462.24x = 637.98 × 329.82
  4. Step 4: Simplify right side
    462.24x = 210,418.56
  5. Step 5: Solve for x
    x = 210,418.56/462.24
  6. Step 6: Final answer
    x = 455.21

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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.