Home / 225,379.22-311,013.72-123,402.83

Finding the Fourth Proportional to 225,379.22, 311,013.72 and 123,402.83

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Solution

The fourth proportional to 225,379.22, 311,013.72 and 123,402.83 is: 170,290.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,379.22 : 311,013.72 = 123,402.83 : x
  2. Step 2: Convert to fraction form
    225,379.22/311,013.72 = 123,402.83/x
  3. Step 3: Cross multiply
    225,379.22x = 311,013.72 × 123,402.83
  4. Step 4: Simplify right side
    225,379.22x = 38,379,971,661.76
  5. Step 5: Solve for x
    x = 38,379,971,661.76/225,379.22
  6. Step 6: Final answer
    x = 170,290.64

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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.