Home / 327,555.88-491,337.06-138,048.28

Finding the Fourth Proportional to 327,555.88, 491,337.06 and 138,048.28

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Solution

The fourth proportional to 327,555.88, 491,337.06 and 138,048.28 is: 207,073.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,555.88 : 491,337.06 = 138,048.28 : x
  2. Step 2: Convert to fraction form
    327,555.88/491,337.06 = 138,048.28/x
  3. Step 3: Cross multiply
    327,555.88x = 491,337.06 × 138,048.28
  4. Step 4: Simplify right side
    327,555.88x = 67,828,236,033.26
  5. Step 5: Solve for x
    x = 67,828,236,033.26/327,555.88
  6. Step 6: Final answer
    x = 207,073.79

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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.