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Finding the Fourth Proportional to 218,695.52, 301,793.64 and 123,201.92

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Solution

The fourth proportional to 218,695.52, 301,793.64 and 123,201.92 is: 170,015.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,695.52 : 301,793.64 = 123,201.92 : x
  2. Step 2: Convert to fraction form
    218,695.52/301,793.64 = 123,201.92/x
  3. Step 3: Cross multiply
    218,695.52x = 301,793.64 × 123,201.92
  4. Step 4: Simplify right side
    218,695.52x = 37,181,555,891.79
  5. Step 5: Solve for x
    x = 37,181,555,891.79/218,695.52
  6. Step 6: Final answer
    x = 170,015.17

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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.