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Finding the Fourth Proportional to 502.15, 754.24 and 329.07

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Solution

The fourth proportional to 502.15, 754.24 and 329.07 is: 494.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.15 : 754.24 = 329.07 : x
  2. Step 2: Convert to fraction form
    502.15/754.24 = 329.07/x
  3. Step 3: Cross multiply
    502.15x = 754.24 × 329.07
  4. Step 4: Simplify right side
    502.15x = 248,193.99
  5. Step 5: Solve for x
    x = 248,193.99/502.15
  6. Step 6: Final answer
    x = 494.27

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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.