Home / 289,074.78-398,934.38-161,747.64

Finding the Fourth Proportional to 289,074.78, 398,934.38 and 161,747.64

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Solution

The fourth proportional to 289,074.78, 398,934.38 and 161,747.64 is: 223,218.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,074.78 : 398,934.38 = 161,747.64 : x
  2. Step 2: Convert to fraction form
    289,074.78/398,934.38 = 161,747.64/x
  3. Step 3: Cross multiply
    289,074.78x = 398,934.38 × 161,747.64
  4. Step 4: Simplify right side
    289,074.78x = 64,526,694,884.23
  5. Step 5: Solve for x
    x = 64,526,694,884.23/289,074.78
  6. Step 6: Final answer
    x = 223,218.00

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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.