Home / 220,967.65-331,194.30-126,264.21

Finding the Fourth Proportional to 220,967.65, 331,194.30 and 126,264.21

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Solution

The fourth proportional to 220,967.65, 331,194.30 and 126,264.21 is: 189,249.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,967.65 : 331,194.30 = 126,264.21 : x
  2. Step 2: Convert to fraction form
    220,967.65/331,194.30 = 126,264.21/x
  3. Step 3: Cross multiply
    220,967.65x = 331,194.30 × 126,264.21
  4. Step 4: Simplify right side
    220,967.65x = 41,817,986,646.00
  5. Step 5: Solve for x
    x = 41,817,986,646.00/220,967.65
  6. Step 6: Final answer
    x = 189,249.36

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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.