Home / 392,320.24-541,619.40-269,990.80

Finding the Fourth Proportional to 392,320.24, 541,619.40 and 269,990.80

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Solution

The fourth proportional to 392,320.24, 541,619.40 and 269,990.80 is: 372,736.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,320.24 : 541,619.40 = 269,990.80 : x
  2. Step 2: Convert to fraction form
    392,320.24/541,619.40 = 269,990.80/x
  3. Step 3: Cross multiply
    392,320.24x = 541,619.40 × 269,990.80
  4. Step 4: Simplify right side
    392,320.24x = 146,232,255,101.52
  5. Step 5: Solve for x
    x = 146,232,255,101.52/392,320.24
  6. Step 6: Final answer
    x = 372,736.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.