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Finding the Fourth Proportional to 502.94, 754.31 and 225.38

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Solution

The fourth proportional to 502.94, 754.31 and 225.38 is: 338.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.94 : 754.31 = 225.38 : x
  2. Step 2: Convert to fraction form
    502.94/754.31 = 225.38/x
  3. Step 3: Cross multiply
    502.94x = 754.31 × 225.38
  4. Step 4: Simplify right side
    502.94x = 170,008.84
  5. Step 5: Solve for x
    x = 170,008.84/502.94
  6. Step 6: Final answer
    x = 338.03

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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.