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Finding the Fourth Proportional to 228,979.80, 343,469.70 and 149,263.65

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Solution

The fourth proportional to 228,979.80, 343,469.70 and 149,263.65 is: 223,895.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,979.80 : 343,469.70 = 149,263.65 : x
  2. Step 2: Convert to fraction form
    228,979.80/343,469.70 = 149,263.65/x
  3. Step 3: Cross multiply
    228,979.80x = 343,469.70 × 149,263.65
  4. Step 4: Simplify right side
    228,979.80x = 51,267,541,086.41
  5. Step 5: Solve for x
    x = 51,267,541,086.41/228,979.80
  6. Step 6: Final answer
    x = 223,895.48

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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.