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Finding the Fourth Proportional to 273,960.89, 378,067.43 and 153,104.20

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Solution

The fourth proportional to 273,960.89, 378,067.43 and 153,104.20 is: 211,284.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,960.89 : 378,067.43 = 153,104.20 : x
  2. Step 2: Convert to fraction form
    273,960.89/378,067.43 = 153,104.20/x
  3. Step 3: Cross multiply
    273,960.89x = 378,067.43 × 153,104.20
  4. Step 4: Simplify right side
    273,960.89x = 57,883,711,416.21
  5. Step 5: Solve for x
    x = 57,883,711,416.21/273,960.89
  6. Step 6: Final answer
    x = 211,284.58

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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.