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Finding the Fourth Proportional to 279,934.60, 419,901.90 and 167,960.20

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Solution

The fourth proportional to 279,934.60, 419,901.90 and 167,960.20 is: 251,940.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,934.60 : 419,901.90 = 167,960.20 : x
  2. Step 2: Convert to fraction form
    279,934.60/419,901.90 = 167,960.20/x
  3. Step 3: Cross multiply
    279,934.60x = 419,901.90 × 167,960.20
  4. Step 4: Simplify right side
    279,934.60x = 70,526,807,104.38
  5. Step 5: Solve for x
    x = 70,526,807,104.38/279,934.60
  6. Step 6: Final answer
    x = 251,940.30

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1.5x scale

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.