Home / 321,195.12-481,410-131,647.92

Finding the Fourth Proportional to 321,195.12, 481,410 and 131,647.92

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Solution

The fourth proportional to 321,195.12, 481,410 and 131,647.92 is: 197,315.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,195.12 : 481,410 = 131,647.92 : x
  2. Step 2: Convert to fraction form
    321,195.12/481,410 = 131,647.92/x
  3. Step 3: Cross multiply
    321,195.12x = 481,410 × 131,647.92
  4. Step 4: Simplify right side
    321,195.12x = 63,376,625,167.20
  5. Step 5: Solve for x
    x = 63,376,625,167.20/321,195.12
  6. Step 6: Final answer
    x = 197,315.03

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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.