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Finding the Fourth Proportional to 197,612.80, 296,361.60 and 79,244.80

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Solution

The fourth proportional to 197,612.80, 296,361.60 and 79,244.80 is: 118,844.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,612.80 : 296,361.60 = 79,244.80 : x
  2. Step 2: Convert to fraction form
    197,612.80/296,361.60 = 79,244.80/x
  3. Step 3: Cross multiply
    197,612.80x = 296,361.60 × 79,244.80
  4. Step 4: Simplify right side
    197,612.80x = 23,485,115,719.68
  5. Step 5: Solve for x
    x = 23,485,115,719.68/197,612.80
  6. Step 6: Final answer
    x = 118,844.10

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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.