Home / 259,738.44-389,646.62-91,229.07

Finding the Fourth Proportional to 259,738.44, 389,646.62 and 91,229.07

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Solution

The fourth proportional to 259,738.44, 389,646.62 and 91,229.07 is: 136,857.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,738.44 : 389,646.62 = 91,229.07 : x
  2. Step 2: Convert to fraction form
    259,738.44/389,646.62 = 91,229.07/x
  3. Step 3: Cross multiply
    259,738.44x = 389,646.62 × 91,229.07
  4. Step 4: Simplify right side
    259,738.44x = 35,547,097,926.62
  5. Step 5: Solve for x
    x = 35,547,097,926.62/259,738.44
  6. Step 6: Final answer
    x = 136,857.29

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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.