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Finding the Fourth Proportional to 247,728.38, 371,611.09 and 70,249.68

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Solution

The fourth proportional to 247,728.38, 371,611.09 and 70,249.68 is: 105,379.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,728.38 : 371,611.09 = 70,249.68 : x
  2. Step 2: Convert to fraction form
    247,728.38/371,611.09 = 70,249.68/x
  3. Step 3: Cross multiply
    247,728.38x = 371,611.09 × 70,249.68
  4. Step 4: Simplify right side
    247,728.38x = 26,105,560,244.76
  5. Step 5: Solve for x
    x = 26,105,560,244.76/247,728.38
  6. Step 6: Final answer
    x = 105,379.77

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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.