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Finding the Fourth Proportional to 250,103.97, 345,162.65 and 142,676.37

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Solution

The fourth proportional to 250,103.97, 345,162.65 and 142,676.37 is: 196,904.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,103.97 : 345,162.65 = 142,676.37 : x
  2. Step 2: Convert to fraction form
    250,103.97/345,162.65 = 142,676.37/x
  3. Step 3: Cross multiply
    250,103.97x = 345,162.65 × 142,676.37
  4. Step 4: Simplify right side
    250,103.97x = 49,246,553,248.20
  5. Step 5: Solve for x
    x = 49,246,553,248.20/250,103.97
  6. Step 6: Final answer
    x = 196,904.32

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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.