Home / 220,219.52-303,924.25-123,439.79

Finding the Fourth Proportional to 220,219.52, 303,924.25 and 123,439.79

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Solution

The fourth proportional to 220,219.52, 303,924.25 and 123,439.79 is: 170,358.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,219.52 : 303,924.25 = 123,439.79 : x
  2. Step 2: Convert to fraction form
    220,219.52/303,924.25 = 123,439.79/x
  3. Step 3: Cross multiply
    220,219.52x = 303,924.25 × 123,439.79
  4. Step 4: Simplify right side
    220,219.52x = 37,516,344,978.71
  5. Step 5: Solve for x
    x = 37,516,344,978.71/220,219.52
  6. Step 6: Final answer
    x = 170,358.86

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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.