Home / 225,382.55-311,026.77-123,406.16

Finding the Fourth Proportional to 225,382.55, 311,026.77 and 123,406.16

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Solution

The fourth proportional to 225,382.55, 311,026.77 and 123,406.16 is: 170,299.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,382.55 : 311,026.77 = 123,406.16 : x
  2. Step 2: Convert to fraction form
    225,382.55/311,026.77 = 123,406.16/x
  3. Step 3: Cross multiply
    225,382.55x = 311,026.77 × 123,406.16
  4. Step 4: Simplify right side
    225,382.55x = 38,382,617,787.77
  5. Step 5: Solve for x
    x = 38,382,617,787.77/225,382.55
  6. Step 6: Final answer
    x = 170,299.87

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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.