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Finding the Fourth Proportional to 250,067.36, 345,102.48 and 142,654.88

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Solution

The fourth proportional to 250,067.36, 345,102.48 and 142,654.88 is: 196,869.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,067.36 : 345,102.48 = 142,654.88 : x
  2. Step 2: Convert to fraction form
    250,067.36/345,102.48 = 142,654.88/x
  3. Step 3: Cross multiply
    250,067.36x = 345,102.48 × 142,654.88
  4. Step 4: Simplify right side
    250,067.36x = 49,230,552,872.10
  5. Step 5: Solve for x
    x = 49,230,552,872.10/250,067.36
  6. Step 6: Final answer
    x = 196,869.17

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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.