Home / 320,402.12-480,493.82-130,832.96

Finding the Fourth Proportional to 320,402.12, 480,493.82 and 130,832.96

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Solution

The fourth proportional to 320,402.12, 480,493.82 and 130,832.96 is: 196,204.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,402.12 : 480,493.82 = 130,832.96 : x
  2. Step 2: Convert to fraction form
    320,402.12/480,493.82 = 130,832.96/x
  3. Step 3: Cross multiply
    320,402.12x = 480,493.82 × 130,832.96
  4. Step 4: Simplify right side
    320,402.12x = 62,864,428,732.31
  5. Step 5: Solve for x
    x = 62,864,428,732.31/320,402.12
  6. Step 6: Final answer
    x = 196,204.78

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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.