Home / 261,786.20-392,679.30-227,571.80

Finding the Fourth Proportional to 261,786.20, 392,679.30 and 227,571.80

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Solution

The fourth proportional to 261,786.20, 392,679.30 and 227,571.80 is: 341,357.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,786.20 : 392,679.30 = 227,571.80 : x
  2. Step 2: Convert to fraction form
    261,786.20/392,679.30 = 227,571.80/x
  3. Step 3: Cross multiply
    261,786.20x = 392,679.30 × 227,571.80
  4. Step 4: Simplify right side
    261,786.20x = 89,362,735,123.74
  5. Step 5: Solve for x
    x = 89,362,735,123.74/261,786.20
  6. Step 6: Final answer
    x = 341,357.70

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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.