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Finding the Fourth Proportional to 308,192, 425,304.96 and 166,880

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Solution

The fourth proportional to 308,192, 425,304.96 and 166,880 is: 230,294.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,192 : 425,304.96 = 166,880 : x
  2. Step 2: Convert to fraction form
    308,192/425,304.96 = 166,880/x
  3. Step 3: Cross multiply
    308,192x = 425,304.96 × 166,880
  4. Step 4: Simplify right side
    308,192x = 70,974,891,724.80
  5. Step 5: Solve for x
    x = 70,974,891,724.80/308,192
  6. Step 6: Final answer
    x = 230,294.40

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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.