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Finding the Fourth Proportional to 210,481.26, 290,469.84 and 125,647.56

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Solution

The fourth proportional to 210,481.26, 290,469.84 and 125,647.56 is: 173,397.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,481.26 : 290,469.84 = 125,647.56 : x
  2. Step 2: Convert to fraction form
    210,481.26/290,469.84 = 125,647.56/x
  3. Step 3: Cross multiply
    210,481.26x = 290,469.84 × 125,647.56
  4. Step 4: Simplify right side
    210,481.26x = 36,496,826,649.59
  5. Step 5: Solve for x
    x = 36,496,826,649.59/210,481.26
  6. Step 6: Final answer
    x = 173,397.04

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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.