Home / 343,346.20-515,019.30-231,371.80

Finding the Fourth Proportional to 343,346.20, 515,019.30 and 231,371.80

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Solution

The fourth proportional to 343,346.20, 515,019.30 and 231,371.80 is: 347,057.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,346.20 : 515,019.30 = 231,371.80 : x
  2. Step 2: Convert to fraction form
    343,346.20/515,019.30 = 231,371.80/x
  3. Step 3: Cross multiply
    343,346.20x = 515,019.30 × 231,371.80
  4. Step 4: Simplify right side
    343,346.20x = 119,160,942,475.74
  5. Step 5: Solve for x
    x = 119,160,942,475.74/343,346.20
  6. Step 6: Final answer
    x = 347,057.70

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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.