Home / 220,219.34-303,923.90-123,422.72

Finding the Fourth Proportional to 220,219.34, 303,923.90 and 123,422.72

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Solution

The fourth proportional to 220,219.34, 303,923.90 and 123,422.72 is: 170,335.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,219.34 : 303,923.90 = 123,422.72 : x
  2. Step 2: Convert to fraction form
    220,219.34/303,923.90 = 123,422.72/x
  3. Step 3: Cross multiply
    220,219.34x = 303,923.90 × 123,422.72
  4. Step 4: Simplify right side
    220,219.34x = 37,511,112,274.27
  5. Step 5: Solve for x
    x = 37,511,112,274.27/220,219.34
  6. Step 6: Final answer
    x = 170,335.24

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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.