Home / 392,320.23-541,399.75-220,238.15

Finding the Fourth Proportional to 392,320.23, 541,399.75 and 220,238.15

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Solution

The fourth proportional to 392,320.23, 541,399.75 and 220,238.15 is: 303,927.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,320.23 : 541,399.75 = 220,238.15 : x
  2. Step 2: Convert to fraction form
    392,320.23/541,399.75 = 220,238.15/x
  3. Step 3: Cross multiply
    392,320.23x = 541,399.75 × 220,238.15
  4. Step 4: Simplify right side
    392,320.23x = 119,236,879,350.46
  5. Step 5: Solve for x
    x = 119,236,879,350.46/392,320.23
  6. Step 6: Final answer
    x = 303,927.43

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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.