Home / 343,789.70-515,757.45-103,883.90

Finding the Fourth Proportional to 343,789.70, 515,757.45 and 103,883.90

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Solution

The fourth proportional to 343,789.70, 515,757.45 and 103,883.90 is: 155,847.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,789.70 : 515,757.45 = 103,883.90 : x
  2. Step 2: Convert to fraction form
    343,789.70/515,757.45 = 103,883.90/x
  3. Step 3: Cross multiply
    343,789.70x = 515,757.45 × 103,883.90
  4. Step 4: Simplify right side
    343,789.70x = 53,578,895,360.06
  5. Step 5: Solve for x
    x = 53,578,895,360.06/343,789.70
  6. Step 6: Final answer
    x = 155,847.88

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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.