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Finding the Fourth Proportional to 181,290.20, 250,220.49 and 100,745.42

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Solution

The fourth proportional to 181,290.20, 250,220.49 and 100,745.42 is: 139,050.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,290.20 : 250,220.49 = 100,745.42 : x
  2. Step 2: Convert to fraction form
    181,290.20/250,220.49 = 100,745.42/x
  3. Step 3: Cross multiply
    181,290.20x = 250,220.49 × 100,745.42
  4. Step 4: Simplify right side
    181,290.20x = 25,208,568,357.66
  5. Step 5: Solve for x
    x = 25,208,568,357.66/181,290.20
  6. Step 6: Final answer
    x = 139,050.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.