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Finding the Fourth Proportional to 275,865, 411,383.42 and 273,342.62

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Solution

The fourth proportional to 275,865, 411,383.42 and 273,342.62 is: 407,621.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,865 : 411,383.42 = 273,342.62 : x
  2. Step 2: Convert to fraction form
    275,865/411,383.42 = 273,342.62/x
  3. Step 3: Cross multiply
    275,865x = 411,383.42 × 273,342.62
  4. Step 4: Simplify right side
    275,865x = 112,448,618,423.73
  5. Step 5: Solve for x
    x = 112,448,618,423.73/275,865
  6. Step 6: Final answer
    x = 407,621.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.