Home / 319,525.12-479,299.92-82,861.60

Finding the Fourth Proportional to 319,525.12, 479,299.92 and 82,861.60

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Solution

The fourth proportional to 319,525.12, 479,299.92 and 82,861.60 is: 124,295.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,525.12 : 479,299.92 = 82,861.60 : x
  2. Step 2: Convert to fraction form
    319,525.12/479,299.92 = 82,861.60/x
  3. Step 3: Cross multiply
    319,525.12x = 479,299.92 × 82,861.60
  4. Step 4: Simplify right side
    319,525.12x = 39,715,558,251.07
  5. Step 5: Solve for x
    x = 39,715,558,251.07/319,525.12
  6. Step 6: Final answer
    x = 124,295.57

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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.