Home / 214,862.20-322,165.30-131,815.80

Finding the Fourth Proportional to 214,862.20, 322,165.30 and 131,815.80

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Solution

The fourth proportional to 214,862.20, 322,165.30 and 131,815.80 is: 197,645.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,862.20 : 322,165.30 = 131,815.80 : x
  2. Step 2: Convert to fraction form
    214,862.20/322,165.30 = 131,815.80/x
  3. Step 3: Cross multiply
    214,862.20x = 322,165.30 × 131,815.80
  4. Step 4: Simplify right side
    214,862.20x = 42,466,476,751.74
  5. Step 5: Solve for x
    x = 42,466,476,751.74/214,862.20
  6. Step 6: Final answer
    x = 197,645.17

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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.