Home / 331,830.20-497,745.30-82,512.20

Finding the Fourth Proportional to 331,830.20, 497,745.30 and 82,512.20

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Solution

The fourth proportional to 331,830.20, 497,745.30 and 82,512.20 is: 123,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,830.20 : 497,745.30 = 82,512.20 : x
  2. Step 2: Convert to fraction form
    331,830.20/497,745.30 = 82,512.20/x
  3. Step 3: Cross multiply
    331,830.20x = 497,745.30 × 82,512.20
  4. Step 4: Simplify right side
    331,830.20x = 41,070,059,742.66
  5. Step 5: Solve for x
    x = 41,070,059,742.66/331,830.20
  6. Step 6: Final answer
    x = 123,768.30

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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.