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Finding the Fourth Proportional to 222,204, 306,641.52 and 121,602

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Solution

The fourth proportional to 222,204, 306,641.52 and 121,602 is: 167,810.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,204 : 306,641.52 = 121,602 : x
  2. Step 2: Convert to fraction form
    222,204/306,641.52 = 121,602/x
  3. Step 3: Cross multiply
    222,204x = 306,641.52 × 121,602
  4. Step 4: Simplify right side
    222,204x = 37,288,222,115.04
  5. Step 5: Solve for x
    x = 37,288,222,115.04/222,204
  6. Step 6: Final answer
    x = 167,810.76

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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.