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Finding the Fourth Proportional to 259,944.80, 389,917.20 and 183,837.20

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Solution

The fourth proportional to 259,944.80, 389,917.20 and 183,837.20 is: 275,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,944.80 : 389,917.20 = 183,837.20 : x
  2. Step 2: Convert to fraction form
    259,944.80/389,917.20 = 183,837.20/x
  3. Step 3: Cross multiply
    259,944.80x = 389,917.20 × 183,837.20
  4. Step 4: Simplify right side
    259,944.80x = 71,681,286,279.84
  5. Step 5: Solve for x
    x = 71,681,286,279.84/259,944.80
  6. Step 6: Final answer
    x = 275,755.80

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1.5x scale

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.