Home / 266,154.42-398,947.32-132,771.72

Finding the Fourth Proportional to 266,154.42, 398,947.32 and 132,771.72

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Solution

The fourth proportional to 266,154.42, 398,947.32 and 132,771.72 is: 199,015.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,154.42 : 398,947.32 = 132,771.72 : x
  2. Step 2: Convert to fraction form
    266,154.42/398,947.32 = 132,771.72/x
  3. Step 3: Cross multiply
    266,154.42x = 398,947.32 × 132,771.72
  4. Step 4: Simplify right side
    266,154.42x = 52,968,921,865.79
  5. Step 5: Solve for x
    x = 52,968,921,865.79/266,154.42
  6. Step 6: Final answer
    x = 199,015.75

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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.