Home / 343,909.20-515,936.70-104,003.40

Finding the Fourth Proportional to 343,909.20, 515,936.70 and 104,003.40

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Solution

The fourth proportional to 343,909.20, 515,936.70 and 104,003.40 is: 156,027.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,909.20 : 515,936.70 = 104,003.40 : x
  2. Step 2: Convert to fraction form
    343,909.20/515,936.70 = 104,003.40/x
  3. Step 3: Cross multiply
    343,909.20x = 515,936.70 × 104,003.40
  4. Step 4: Simplify right side
    343,909.20x = 53,659,170,984.78
  5. Step 5: Solve for x
    x = 53,659,170,984.78/343,909.20
  6. Step 6: Final answer
    x = 156,027.15

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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.