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Finding the Fourth Proportional to 321,442, 482,163 and 124,450

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Solution

The fourth proportional to 321,442, 482,163 and 124,450 is: 186,675

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,442 : 482,163 = 124,450 : x
  2. Step 2: Convert to fraction form
    321,442/482,163 = 124,450/x
  3. Step 3: Cross multiply
    321,442x = 482,163 × 124,450
  4. Step 4: Simplify right side
    321,442x = 60,005,185,350
  5. Step 5: Solve for x
    x = 60,005,185,350/321,442
  6. Step 6: Final answer
    x = 186,675

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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.