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Finding the Fourth Proportional to 277,298.54, 415,976.97 and 90,324.62

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Solution

The fourth proportional to 277,298.54, 415,976.97 and 90,324.62 is: 135,496.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,298.54 : 415,976.97 = 90,324.62 : x
  2. Step 2: Convert to fraction form
    277,298.54/415,976.97 = 90,324.62/x
  3. Step 3: Cross multiply
    277,298.54x = 415,976.97 × 90,324.62
  4. Step 4: Simplify right side
    277,298.54x = 37,572,961,744.00
  5. Step 5: Solve for x
    x = 37,572,961,744.00/277,298.54
  6. Step 6: Final answer
    x = 135,496.43

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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.