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Finding the Fourth Proportional to 206,158.93, 308,974.12 and 179,393.69

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Solution

The fourth proportional to 206,158.93, 308,974.12 and 179,393.69 is: 268,860.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,158.93 : 308,974.12 = 179,393.69 : x
  2. Step 2: Convert to fraction form
    206,158.93/308,974.12 = 179,393.69/x
  3. Step 3: Cross multiply
    206,158.93x = 308,974.12 × 179,393.69
  4. Step 4: Simplify right side
    206,158.93x = 55,428,007,501.30
  5. Step 5: Solve for x
    x = 55,428,007,501.30/206,158.93
  6. Step 6: Final answer
    x = 268,860.57

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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.