Home / 259,982.94-389,988.27-82,503.84

Finding the Fourth Proportional to 259,982.94, 389,988.27 and 82,503.84

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Solution

The fourth proportional to 259,982.94, 389,988.27 and 82,503.84 is: 123,760.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,982.94 : 389,988.27 = 82,503.84 : x
  2. Step 2: Convert to fraction form
    259,982.94/389,988.27 = 82,503.84/x
  3. Step 3: Cross multiply
    259,982.94x = 389,988.27 × 82,503.84
  4. Step 4: Simplify right side
    259,982.94x = 32,175,529,829.96
  5. Step 5: Solve for x
    x = 32,175,529,829.96/259,982.94
  6. Step 6: Final answer
    x = 123,760.16

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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.