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Finding the Fourth Proportional to 321,446, 482,169 and 124,454

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Solution

The fourth proportional to 321,446, 482,169 and 124,454 is: 186,681

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,446 : 482,169 = 124,454 : x
  2. Step 2: Convert to fraction form
    321,446/482,169 = 124,454/x
  3. Step 3: Cross multiply
    321,446x = 482,169 × 124,454
  4. Step 4: Simplify right side
    321,446x = 60,007,860,726
  5. Step 5: Solve for x
    x = 60,007,860,726/321,446
  6. Step 6: Final answer
    x = 186,681

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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.