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Finding the Fourth Proportional to 197,651.57, 296,532.78 and 79,405.94

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Solution

The fourth proportional to 197,651.57, 296,532.78 and 79,405.94 is: 119,131.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,651.57 : 296,532.78 = 79,405.94 : x
  2. Step 2: Convert to fraction form
    197,651.57/296,532.78 = 79,405.94/x
  3. Step 3: Cross multiply
    197,651.57x = 296,532.78 × 79,405.94
  4. Step 4: Simplify right side
    197,651.57x = 23,546,463,739.68
  5. Step 5: Solve for x
    x = 23,546,463,739.68/197,651.57
  6. Step 6: Final answer
    x = 119,131.18

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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.