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Finding the Fourth Proportional to 200,883.56, 301,115.10 and 67,717.80

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Solution

The fourth proportional to 200,883.56, 301,115.10 and 67,717.80 is: 101,505.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,883.56 : 301,115.10 = 67,717.80 : x
  2. Step 2: Convert to fraction form
    200,883.56/301,115.10 = 67,717.80/x
  3. Step 3: Cross multiply
    200,883.56x = 301,115.10 × 67,717.80
  4. Step 4: Simplify right side
    200,883.56x = 20,390,852,118.78
  5. Step 5: Solve for x
    x = 20,390,852,118.78/200,883.56
  6. Step 6: Final answer
    x = 101,505.83

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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.