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Finding the Fourth Proportional to 273,945.60, 378,086.40 and 160,819.20

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Solution

The fourth proportional to 273,945.60, 378,086.40 and 160,819.20 is: 221,954.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,945.60 : 378,086.40 = 160,819.20 : x
  2. Step 2: Convert to fraction form
    273,945.60/378,086.40 = 160,819.20/x
  3. Step 3: Cross multiply
    273,945.60x = 378,086.40 × 160,819.20
  4. Step 4: Simplify right side
    273,945.60x = 60,803,552,378.88
  5. Step 5: Solve for x
    x = 60,803,552,378.88/273,945.60
  6. Step 6: Final answer
    x = 221,954.84

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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.