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Finding the Fourth Proportional to 323.56, 482.57 and 275.13

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Solution

The fourth proportional to 323.56, 482.57 and 275.13 is: 410.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.56 : 482.57 = 275.13 : x
  2. Step 2: Convert to fraction form
    323.56/482.57 = 275.13/x
  3. Step 3: Cross multiply
    323.56x = 482.57 × 275.13
  4. Step 4: Simplify right side
    323.56x = 132,770.69
  5. Step 5: Solve for x
    x = 132,770.69/323.56
  6. Step 6: Final answer
    x = 410.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.