Home / 380,917.92-571,415.78-131,567.52

Finding the Fourth Proportional to 380,917.92, 571,415.78 and 131,567.52

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Solution

The fourth proportional to 380,917.92, 571,415.78 and 131,567.52 is: 197,364.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,917.92 : 571,415.78 = 131,567.52 : x
  2. Step 2: Convert to fraction form
    380,917.92/571,415.78 = 131,567.52/x
  3. Step 3: Cross multiply
    380,917.92x = 571,415.78 × 131,567.52
  4. Step 4: Simplify right side
    380,917.92x = 75,179,757,063.47
  5. Step 5: Solve for x
    x = 75,179,757,063.47/380,917.92
  6. Step 6: Final answer
    x = 197,364.72

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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.