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Finding the Fourth Proportional to 273,968.80, 378,104.16 and 160,789.12

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Solution

The fourth proportional to 273,968.80, 378,104.16 and 160,789.12 is: 221,904.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,968.80 : 378,104.16 = 160,789.12 : x
  2. Step 2: Convert to fraction form
    273,968.80/378,104.16 = 160,789.12/x
  3. Step 3: Cross multiply
    273,968.80x = 378,104.16 × 160,789.12
  4. Step 4: Simplify right side
    273,968.80x = 60,795,035,154.74
  5. Step 5: Solve for x
    x = 60,795,035,154.74/273,968.80
  6. Step 6: Final answer
    x = 221,904.96

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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.