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Finding the Fourth Proportional to 444,988.96, 667,016.88 and 208,132

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Solution

The fourth proportional to 444,988.96, 667,016.88 and 208,132 is: 311,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,988.96 : 667,016.88 = 208,132 : x
  2. Step 2: Convert to fraction form
    444,988.96/667,016.88 = 208,132/x
  3. Step 3: Cross multiply
    444,988.96x = 667,016.88 × 208,132
  4. Step 4: Simplify right side
    444,988.96x = 138,827,557,268.16
  5. Step 5: Solve for x
    x = 138,827,557,268.16/444,988.96
  6. Step 6: Final answer
    x = 311,979.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.