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Finding the Fourth Proportional to 197,940, 297,069.30 and 112,603.26

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Solution

The fourth proportional to 197,940, 297,069.30 and 112,603.26 is: 168,995.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,940 : 297,069.30 = 112,603.26 : x
  2. Step 2: Convert to fraction form
    197,940/297,069.30 = 112,603.26/x
  3. Step 3: Cross multiply
    197,940x = 297,069.30 × 112,603.26
  4. Step 4: Simplify right side
    197,940x = 33,450,971,625.92
  5. Step 5: Solve for x
    x = 33,450,971,625.92/197,940
  6. Step 6: Final answer
    x = 168,995.51

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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.