Home / 331,026.20-496,539.30-81,708.20

Finding the Fourth Proportional to 331,026.20, 496,539.30 and 81,708.20

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Solution

The fourth proportional to 331,026.20, 496,539.30 and 81,708.20 is: 122,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,026.20 : 496,539.30 = 81,708.20 : x
  2. Step 2: Convert to fraction form
    331,026.20/496,539.30 = 81,708.20/x
  3. Step 3: Cross multiply
    331,026.20x = 496,539.30 × 81,708.20
  4. Step 4: Simplify right side
    331,026.20x = 40,571,332,432.26
  5. Step 5: Solve for x
    x = 40,571,332,432.26/331,026.20
  6. Step 6: Final answer
    x = 122,562.30

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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.