Home / 259,769.81-389,310.25-133,404.95

Finding the Fourth Proportional to 259,769.81, 389,310.25 and 133,404.95

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Solution

The fourth proportional to 259,769.81, 389,310.25 and 133,404.95 is: 199,930.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,769.81 : 389,310.25 = 133,404.95 : x
  2. Step 2: Convert to fraction form
    259,769.81/389,310.25 = 133,404.95/x
  3. Step 3: Cross multiply
    259,769.81x = 389,310.25 × 133,404.95
  4. Step 4: Simplify right side
    259,769.81x = 51,935,914,435.74
  5. Step 5: Solve for x
    x = 51,935,914,435.74/259,769.81
  6. Step 6: Final answer
    x = 199,930.52

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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.