Home / 231,816.78-347,725.17-126,578.34

Finding the Fourth Proportional to 231,816.78, 347,725.17 and 126,578.34

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Solution

The fourth proportional to 231,816.78, 347,725.17 and 126,578.34 is: 189,867.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,816.78 : 347,725.17 = 126,578.34 : x
  2. Step 2: Convert to fraction form
    231,816.78/347,725.17 = 126,578.34/x
  3. Step 3: Cross multiply
    231,816.78x = 347,725.17 × 126,578.34
  4. Step 4: Simplify right side
    231,816.78x = 44,014,474,794.82
  5. Step 5: Solve for x
    x = 44,014,474,794.82/231,816.78
  6. Step 6: Final answer
    x = 189,867.51

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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.