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Finding the Fourth Proportional to 210,080.27, 315,161.38 and 67,960.78

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Solution

The fourth proportional to 210,080.27, 315,161.38 and 67,960.78 is: 101,954.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,080.27 : 315,161.38 = 67,960.78 : x
  2. Step 2: Convert to fraction form
    210,080.27/315,161.38 = 67,960.78/x
  3. Step 3: Cross multiply
    210,080.27x = 315,161.38 × 67,960.78
  4. Step 4: Simplify right side
    210,080.27x = 21,418,612,507.72
  5. Step 5: Solve for x
    x = 21,418,612,507.72/210,080.27
  6. Step 6: Final answer
    x = 101,954.42

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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.