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Finding the Fourth Proportional to 197,939, 297,067.80 and 112,602.26

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Solution

The fourth proportional to 197,939, 297,067.80 and 112,602.26 is: 168,994.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,939 : 297,067.80 = 112,602.26 : x
  2. Step 2: Convert to fraction form
    197,939/297,067.80 = 112,602.26/x
  3. Step 3: Cross multiply
    197,939x = 297,067.80 × 112,602.26
  4. Step 4: Simplify right side
    197,939x = 33,450,505,653.23
  5. Step 5: Solve for x
    x = 33,450,505,653.23/197,939
  6. Step 6: Final answer
    x = 168,994.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.