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Finding the Fourth Proportional to 535.29, 738.62 and 325.43

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Solution

The fourth proportional to 535.29, 738.62 and 325.43 is: 449.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.29 : 738.62 = 325.43 : x
  2. Step 2: Convert to fraction form
    535.29/738.62 = 325.43/x
  3. Step 3: Cross multiply
    535.29x = 738.62 × 325.43
  4. Step 4: Simplify right side
    535.29x = 240,363.79
  5. Step 5: Solve for x
    x = 240,363.79/535.29
  6. Step 6: Final answer
    x = 449.03

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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.