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Finding the Fourth Proportional to 304,839.66, 420,674.29 and 168,873.38

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Solution

The fourth proportional to 304,839.66, 420,674.29 and 168,873.38 is: 233,042.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,839.66 : 420,674.29 = 168,873.38 : x
  2. Step 2: Convert to fraction form
    304,839.66/420,674.29 = 168,873.38/x
  3. Step 3: Cross multiply
    304,839.66x = 420,674.29 × 168,873.38
  4. Step 4: Simplify right side
    304,839.66x = 71,040,689,231.40
  5. Step 5: Solve for x
    x = 71,040,689,231.40/304,839.66
  6. Step 6: Final answer
    x = 233,042.80

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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.