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Finding the Fourth Proportional to 306,067.52, 422,372.76 and 170,097.20

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Solution

The fourth proportional to 306,067.52, 422,372.76 and 170,097.20 is: 234,733.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,067.52 : 422,372.76 = 170,097.20 : x
  2. Step 2: Convert to fraction form
    306,067.52/422,372.76 = 170,097.20/x
  3. Step 3: Cross multiply
    306,067.52x = 422,372.76 × 170,097.20
  4. Step 4: Simplify right side
    306,067.52x = 71,844,423,832.27
  5. Step 5: Solve for x
    x = 71,844,423,832.27/306,067.52
  6. Step 6: Final answer
    x = 234,733.90

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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.