Home / 220,966.65-331,192.80-126,263.21

Finding the Fourth Proportional to 220,966.65, 331,192.80 and 126,263.21

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Solution

The fourth proportional to 220,966.65, 331,192.80 and 126,263.21 is: 189,247.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,966.65 : 331,192.80 = 126,263.21 : x
  2. Step 2: Convert to fraction form
    220,966.65/331,192.80 = 126,263.21/x
  3. Step 3: Cross multiply
    220,966.65x = 331,192.80 × 126,263.21
  4. Step 4: Simplify right side
    220,966.65x = 41,817,464,400.92
  5. Step 5: Solve for x
    x = 41,817,464,400.92/220,966.65
  6. Step 6: Final answer
    x = 189,247.85

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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.