Home / 275,932.32-380,786.22-161,289.78

Finding the Fourth Proportional to 275,932.32, 380,786.22 and 161,289.78

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Solution

The fourth proportional to 275,932.32, 380,786.22 and 161,289.78 is: 222,579.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,932.32 : 380,786.22 = 161,289.78 : x
  2. Step 2: Convert to fraction form
    275,932.32/380,786.22 = 161,289.78/x
  3. Step 3: Cross multiply
    275,932.32x = 380,786.22 × 161,289.78
  4. Step 4: Simplify right side
    275,932.32x = 61,416,925,650.83
  5. Step 5: Solve for x
    x = 61,416,925,650.83/275,932.32
  6. Step 6: Final answer
    x = 222,579.67

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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.