Home / 319,105.82-440,441.08-198,338.32

Finding the Fourth Proportional to 319,105.82, 440,441.08 and 198,338.32

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Solution

The fourth proportional to 319,105.82, 440,441.08 and 198,338.32 is: 273,753.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,105.82 : 440,441.08 = 198,338.32 : x
  2. Step 2: Convert to fraction form
    319,105.82/440,441.08 = 198,338.32/x
  3. Step 3: Cross multiply
    319,105.82x = 440,441.08 × 198,338.32
  4. Step 4: Simplify right side
    319,105.82x = 87,356,340,672.29
  5. Step 5: Solve for x
    x = 87,356,340,672.29/319,105.82
  6. Step 6: Final answer
    x = 273,753.52

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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.