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Finding the Fourth Proportional to 274,434.20, 410,995.20 and 221,946.20

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Solution

The fourth proportional to 274,434.20, 410,995.20 and 221,946.20 is: 332,388.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,434.20 : 410,995.20 = 221,946.20 : x
  2. Step 2: Convert to fraction form
    274,434.20/410,995.20 = 221,946.20/x
  3. Step 3: Cross multiply
    274,434.20x = 410,995.20 × 221,946.20
  4. Step 4: Simplify right side
    274,434.20x = 91,218,822,858.24
  5. Step 5: Solve for x
    x = 91,218,822,858.24/274,434.20
  6. Step 6: Final answer
    x = 332,388.69

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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.