Home / 225,537.28-311,237.67-123,561.79

Finding the Fourth Proportional to 225,537.28, 311,237.67 and 123,561.79

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Solution

The fourth proportional to 225,537.28, 311,237.67 and 123,561.79 is: 170,513.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,537.28 : 311,237.67 = 123,561.79 : x
  2. Step 2: Convert to fraction form
    225,537.28/311,237.67 = 123,561.79/x
  3. Step 3: Cross multiply
    225,537.28x = 311,237.67 × 123,561.79
  4. Step 4: Simplify right side
    225,537.28x = 38,457,083,620.63
  5. Step 5: Solve for x
    x = 38,457,083,620.63/225,537.28
  6. Step 6: Final answer
    x = 170,513.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.