Home / 392,138.49-541,267.03-231,045.59

Finding the Fourth Proportional to 392,138.49, 541,267.03 and 231,045.59

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Solution

The fourth proportional to 392,138.49, 541,267.03 and 231,045.59 is: 318,911.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,138.49 : 541,267.03 = 231,045.59 : x
  2. Step 2: Convert to fraction form
    392,138.49/541,267.03 = 231,045.59/x
  3. Step 3: Cross multiply
    392,138.49x = 541,267.03 × 231,045.59
  4. Step 4: Simplify right side
    392,138.49x = 125,057,357,785.50
  5. Step 5: Solve for x
    x = 125,057,357,785.50/392,138.49
  6. Step 6: Final answer
    x = 318,911.21

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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.