Home / 230,329.12-345,493.68-131,764

Finding the Fourth Proportional to 230,329.12, 345,493.68 and 131,764

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Solution

The fourth proportional to 230,329.12, 345,493.68 and 131,764 is: 197,646

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,329.12 : 345,493.68 = 131,764 : x
  2. Step 2: Convert to fraction form
    230,329.12/345,493.68 = 131,764/x
  3. Step 3: Cross multiply
    230,329.12x = 345,493.68 × 131,764
  4. Step 4: Simplify right side
    230,329.12x = 45,523,629,251.52
  5. Step 5: Solve for x
    x = 45,523,629,251.52/230,329.12
  6. Step 6: Final answer
    x = 197,646

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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.