Home / 207,965.80-311,999.10-60,221.80

Finding the Fourth Proportional to 207,965.80, 311,999.10 and 60,221.80

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Solution

The fourth proportional to 207,965.80, 311,999.10 and 60,221.80 is: 90,347.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,965.80 : 311,999.10 = 60,221.80 : x
  2. Step 2: Convert to fraction form
    207,965.80/311,999.10 = 60,221.80/x
  3. Step 3: Cross multiply
    207,965.80x = 311,999.10 × 60,221.80
  4. Step 4: Simplify right side
    207,965.80x = 18,789,147,400.38
  5. Step 5: Solve for x
    x = 18,789,147,400.38/207,965.80
  6. Step 6: Final answer
    x = 90,347.29

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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.