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Finding the Fourth Proportional to 305,832.20, 422,048.43 and 171,696.20

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Solution

The fourth proportional to 305,832.20, 422,048.43 and 171,696.20 is: 236,940.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,832.20 : 422,048.43 = 171,696.20 : x
  2. Step 2: Convert to fraction form
    305,832.20/422,048.43 = 171,696.20/x
  3. Step 3: Cross multiply
    305,832.20x = 422,048.43 × 171,696.20
  4. Step 4: Simplify right side
    305,832.20x = 72,464,109,536.72
  5. Step 5: Solve for x
    x = 72,464,109,536.72/305,832.20
  6. Step 6: Final answer
    x = 236,940.75

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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.