Home / 223,211.43-308,034.01-121,238.88

Finding the Fourth Proportional to 223,211.43, 308,034.01 and 121,238.88

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Solution

The fourth proportional to 223,211.43, 308,034.01 and 121,238.88 is: 167,310.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,211.43 : 308,034.01 = 121,238.88 : x
  2. Step 2: Convert to fraction form
    223,211.43/308,034.01 = 121,238.88/x
  3. Step 3: Cross multiply
    223,211.43x = 308,034.01 × 121,238.88
  4. Step 4: Simplify right side
    223,211.43x = 37,345,697,370.73
  5. Step 5: Solve for x
    x = 37,345,697,370.73/223,211.43
  6. Step 6: Final answer
    x = 167,310.86

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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.