Home / 380,917.42-571,415.03-131,567.02

Finding the Fourth Proportional to 380,917.42, 571,415.03 and 131,567.02

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Solution

The fourth proportional to 380,917.42, 571,415.03 and 131,567.02 is: 197,363.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,917.42 : 571,415.03 = 131,567.02 : x
  2. Step 2: Convert to fraction form
    380,917.42/571,415.03 = 131,567.02/x
  3. Step 3: Cross multiply
    380,917.42x = 571,415.03 × 131,567.02
  4. Step 4: Simplify right side
    380,917.42x = 75,179,372,680.31
  5. Step 5: Solve for x
    x = 75,179,372,680.31/380,917.42
  6. Step 6: Final answer
    x = 197,363.97

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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.