Home / 259,275.43-388,631.94-132,742.15

Finding the Fourth Proportional to 259,275.43, 388,631.94 and 132,742.15

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Solution

The fourth proportional to 259,275.43, 388,631.94 and 132,742.15 is: 198,969.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,275.43 : 388,631.94 = 132,742.15 : x
  2. Step 2: Convert to fraction form
    259,275.43/388,631.94 = 132,742.15/x
  3. Step 3: Cross multiply
    259,275.43x = 388,631.94 × 132,742.15
  4. Step 4: Simplify right side
    259,275.43x = 51,587,839,274.27
  5. Step 5: Solve for x
    x = 51,587,839,274.27/259,275.43
  6. Step 6: Final answer
    x = 198,969.26

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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.