Home / 324,517.14-487,026.78-212,166.90

Finding the Fourth Proportional to 324,517.14, 487,026.78 and 212,166.90

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Solution

The fourth proportional to 324,517.14, 487,026.78 and 212,166.90 is: 318,414.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,517.14 : 487,026.78 = 212,166.90 : x
  2. Step 2: Convert to fraction form
    324,517.14/487,026.78 = 212,166.90/x
  3. Step 3: Cross multiply
    324,517.14x = 487,026.78 × 212,166.90
  4. Step 4: Simplify right side
    324,517.14x = 103,330,962,129.58
  5. Step 5: Solve for x
    x = 103,330,962,129.58/324,517.14
  6. Step 6: Final answer
    x = 318,414.50

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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.