Home / 288,918.12-398,704.83-161,593.72

Finding the Fourth Proportional to 288,918.12, 398,704.83 and 161,593.72

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Solution

The fourth proportional to 288,918.12, 398,704.83 and 161,593.72 is: 222,998.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,918.12 : 398,704.83 = 161,593.72 : x
  2. Step 2: Convert to fraction form
    288,918.12/398,704.83 = 161,593.72/x
  3. Step 3: Cross multiply
    288,918.12x = 398,704.83 × 161,593.72
  4. Step 4: Simplify right side
    288,918.12x = 64,428,196,661.67
  5. Step 5: Solve for x
    x = 64,428,196,661.67/288,918.12
  6. Step 6: Final answer
    x = 222,998.12

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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.