Home / 225,396.37-311,035.24-123,402.29

Finding the Fourth Proportional to 225,396.37, 311,035.24 and 123,402.29

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Solution

The fourth proportional to 225,396.37, 311,035.24 and 123,402.29 is: 170,288.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,396.37 : 311,035.24 = 123,402.29 : x
  2. Step 2: Convert to fraction form
    225,396.37/311,035.24 = 123,402.29/x
  3. Step 3: Cross multiply
    225,396.37x = 311,035.24 × 123,402.29
  4. Step 4: Simplify right side
    225,396.37x = 38,382,459,485.78
  5. Step 5: Solve for x
    x = 38,382,459,485.78/225,396.37
  6. Step 6: Final answer
    x = 170,288.72

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1.5x scale

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.