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Finding the Fourth Proportional to 218,166.64, 301,067 and 122,673.56

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Solution

The fourth proportional to 218,166.64, 301,067 and 122,673.56 is: 169,287.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,166.64 : 301,067 = 122,673.56 : x
  2. Step 2: Convert to fraction form
    218,166.64/301,067 = 122,673.56/x
  3. Step 3: Cross multiply
    218,166.64x = 301,067 × 122,673.56
  4. Step 4: Simplify right side
    218,166.64x = 36,932,960,688.52
  5. Step 5: Solve for x
    x = 36,932,960,688.52/218,166.64
  6. Step 6: Final answer
    x = 169,287.85

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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.