Home / 274,025.03-378,154.40-160,847.78

Finding the Fourth Proportional to 274,025.03, 378,154.40 and 160,847.78

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Solution

The fourth proportional to 274,025.03, 378,154.40 and 160,847.78 is: 221,969.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,025.03 : 378,154.40 = 160,847.78 : x
  2. Step 2: Convert to fraction form
    274,025.03/378,154.40 = 160,847.78/x
  3. Step 3: Cross multiply
    274,025.03x = 378,154.40 × 160,847.78
  4. Step 4: Simplify right side
    274,025.03x = 60,825,293,846.46
  5. Step 5: Solve for x
    x = 60,825,293,846.46/274,025.03
  6. Step 6: Final answer
    x = 221,969.85

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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.