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Finding the Fourth Proportional to 259,675.05, 389,473.53 and 82,158.96

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Solution

The fourth proportional to 259,675.05, 389,473.53 and 82,158.96 is: 123,226.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,675.05 : 389,473.53 = 82,158.96 : x
  2. Step 2: Convert to fraction form
    259,675.05/389,473.53 = 82,158.96/x
  3. Step 3: Cross multiply
    259,675.05x = 389,473.53 × 82,158.96
  4. Step 4: Simplify right side
    259,675.05x = 31,998,740,172.33
  5. Step 5: Solve for x
    x = 31,998,740,172.33/259,675.05
  6. Step 6: Final answer
    x = 123,226.09

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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.