Home / 225,514.16-311,209.66-123,543.31

Finding the Fourth Proportional to 225,514.16, 311,209.66 and 123,543.31

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Solution

The fourth proportional to 225,514.16, 311,209.66 and 123,543.31 is: 170,489.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,514.16 : 311,209.66 = 123,543.31 : x
  2. Step 2: Convert to fraction form
    225,514.16/311,209.66 = 123,543.31/x
  3. Step 3: Cross multiply
    225,514.16x = 311,209.66 × 123,543.31
  4. Step 4: Simplify right side
    225,514.16x = 38,447,871,460.30
  5. Step 5: Solve for x
    x = 38,447,871,460.30/225,514.16
  6. Step 6: Final answer
    x = 170,489.83

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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.