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Finding the Fourth Proportional to 225,481.20, 310,534.20 and 220,582.32

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Solution

The fourth proportional to 225,481.20, 310,534.20 and 220,582.32 is: 303,787.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,481.20 : 310,534.20 = 220,582.32 : x
  2. Step 2: Convert to fraction form
    225,481.20/310,534.20 = 220,582.32/x
  3. Step 3: Cross multiply
    225,481.20x = 310,534.20 × 220,582.32
  4. Step 4: Simplify right side
    225,481.20x = 68,498,354,275.34
  5. Step 5: Solve for x
    x = 68,498,354,275.34/225,481.20
  6. Step 6: Final answer
    x = 303,787.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.