Home / 259,212.66-388,256.37-125,812.56

Finding the Fourth Proportional to 259,212.66, 388,256.37 and 125,812.56

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Solution

The fourth proportional to 259,212.66, 388,256.37 and 125,812.56 is: 188,445.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,212.66 : 388,256.37 = 125,812.56 : x
  2. Step 2: Convert to fraction form
    259,212.66/388,256.37 = 125,812.56/x
  3. Step 3: Cross multiply
    259,212.66x = 388,256.37 × 125,812.56
  4. Step 4: Simplify right side
    259,212.66x = 48,847,527,846.01
  5. Step 5: Solve for x
    x = 48,847,527,846.01/259,212.66
  6. Step 6: Final answer
    x = 188,445.76

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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.