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Finding the Fourth Proportional to 197,891.79, 296,661.50 and 71,503.84

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Solution

The fourth proportional to 197,891.79, 296,661.50 and 71,503.84 is: 107,192.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,891.79 : 296,661.50 = 71,503.84 : x
  2. Step 2: Convert to fraction form
    197,891.79/296,661.50 = 71,503.84/x
  3. Step 3: Cross multiply
    197,891.79x = 296,661.50 × 71,503.84
  4. Step 4: Simplify right side
    197,891.79x = 21,212,436,072.64
  5. Step 5: Solve for x
    x = 21,212,436,072.64/197,891.79
  6. Step 6: Final answer
    x = 107,192.10

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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.