Home / 298,787.89-412,327.31-162,821.80

Finding the Fourth Proportional to 298,787.89, 412,327.31 and 162,821.80

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Solution

The fourth proportional to 298,787.89, 412,327.31 and 162,821.80 is: 224,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,787.89 : 412,327.31 = 162,821.80 : x
  2. Step 2: Convert to fraction form
    298,787.89/412,327.31 = 162,821.80/x
  3. Step 3: Cross multiply
    298,787.89x = 412,327.31 × 162,821.80
  4. Step 4: Simplify right side
    298,787.89x = 67,135,874,803.36
  5. Step 5: Solve for x
    x = 67,135,874,803.36/298,787.89
  6. Step 6: Final answer
    x = 224,694.10

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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.