Home / 321,857.25-482,669.19-144,272.85

Finding the Fourth Proportional to 321,857.25, 482,669.19 and 144,272.85

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Solution

The fourth proportional to 321,857.25, 482,669.19 and 144,272.85 is: 216,356.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,857.25 : 482,669.19 = 144,272.85 : x
  2. Step 2: Convert to fraction form
    321,857.25/482,669.19 = 144,272.85/x
  3. Step 3: Cross multiply
    321,857.25x = 482,669.19 × 144,272.85
  4. Step 4: Simplify right side
    321,857.25x = 69,636,059,648.49
  5. Step 5: Solve for x
    x = 69,636,059,648.49/321,857.25
  6. Step 6: Final answer
    x = 216,356.97

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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.