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Finding the Fourth Proportional to 321,914.25, 482,754.74 and 144,329.85

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Solution

The fourth proportional to 321,914.25, 482,754.74 and 144,329.85 is: 216,442.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,914.25 : 482,754.74 = 144,329.85 : x
  2. Step 2: Convert to fraction form
    321,914.25/482,754.74 = 144,329.85/x
  3. Step 3: Cross multiply
    321,914.25x = 482,754.74 × 144,329.85
  4. Step 4: Simplify right side
    321,914.25x = 69,675,918,489.34
  5. Step 5: Solve for x
    x = 69,675,918,489.34/321,914.25
  6. Step 6: Final answer
    x = 216,442.48

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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.