Home / 220,431.29-304,191.77-123,635.12

Finding the Fourth Proportional to 220,431.29, 304,191.77 and 123,635.12

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Solution

The fourth proportional to 220,431.29, 304,191.77 and 123,635.12 is: 170,614.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,431.29 : 304,191.77 = 123,635.12 : x
  2. Step 2: Convert to fraction form
    220,431.29/304,191.77 = 123,635.12/x
  3. Step 3: Cross multiply
    220,431.29x = 304,191.77 × 123,635.12
  4. Step 4: Simplify right side
    220,431.29x = 37,608,783,847.83
  5. Step 5: Solve for x
    x = 37,608,783,847.83/220,431.29
  6. Step 6: Final answer
    x = 170,614.55

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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.