Home / 275,548.32-380,436-168,180.60

Finding the Fourth Proportional to 275,548.32, 380,436 and 168,180.60

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Solution

The fourth proportional to 275,548.32, 380,436 and 168,180.60 is: 232,198.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,548.32 : 380,436 = 168,180.60 : x
  2. Step 2: Convert to fraction form
    275,548.32/380,436 = 168,180.60/x
  3. Step 3: Cross multiply
    275,548.32x = 380,436 × 168,180.60
  4. Step 4: Simplify right side
    275,548.32x = 63,981,954,741.60
  5. Step 5: Solve for x
    x = 63,981,954,741.60/275,548.32
  6. Step 6: Final answer
    x = 232,198.67

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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.