Home / 225,514.15-311,209.90-123,537.39

Finding the Fourth Proportional to 225,514.15, 311,209.90 and 123,537.39

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Solution

The fourth proportional to 225,514.15, 311,209.90 and 123,537.39 is: 170,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,514.15 : 311,209.90 = 123,537.39 : x
  2. Step 2: Convert to fraction form
    225,514.15/311,209.90 = 123,537.39/x
  3. Step 3: Cross multiply
    225,514.15x = 311,209.90 × 123,537.39
  4. Step 4: Simplify right side
    225,514.15x = 38,446,057,077.69
  5. Step 5: Solve for x
    x = 38,446,057,077.69/225,514.15
  6. Step 6: Final answer
    x = 170,481.80

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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.