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Finding the Fourth Proportional to 502.57, 693.27 and 325.39

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Solution

The fourth proportional to 502.57, 693.27 and 325.39 is: 448.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.57 : 693.27 = 325.39 : x
  2. Step 2: Convert to fraction form
    502.57/693.27 = 325.39/x
  3. Step 3: Cross multiply
    502.57x = 693.27 × 325.39
  4. Step 4: Simplify right side
    502.57x = 225,583.13
  5. Step 5: Solve for x
    x = 225,583.13/502.57
  6. Step 6: Final answer
    x = 448.86

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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.