Home / 207,276.96-311,036.01-80,910.48

Finding the Fourth Proportional to 207,276.96, 311,036.01 and 80,910.48

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Solution

The fourth proportional to 207,276.96, 311,036.01 and 80,910.48 is: 121,412.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,276.96 : 311,036.01 = 80,910.48 : x
  2. Step 2: Convert to fraction form
    207,276.96/311,036.01 = 80,910.48/x
  3. Step 3: Cross multiply
    207,276.96x = 311,036.01 × 80,910.48
  4. Step 4: Simplify right side
    207,276.96x = 25,166,072,866.38
  5. Step 5: Solve for x
    x = 25,166,072,866.38/207,276.96
  6. Step 6: Final answer
    x = 121,412.78

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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.