Home / 298,787.71-412,327.05-162,821.62

Finding the Fourth Proportional to 298,787.71, 412,327.05 and 162,821.62

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Solution

The fourth proportional to 298,787.71, 412,327.05 and 162,821.62 is: 224,693.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,787.71 : 412,327.05 = 162,821.62 : x
  2. Step 2: Convert to fraction form
    298,787.71/412,327.05 = 162,821.62/x
  3. Step 3: Cross multiply
    298,787.71x = 412,327.05 × 162,821.62
  4. Step 4: Simplify right side
    298,787.71x = 67,135,758,250.82
  5. Step 5: Solve for x
    x = 67,135,758,250.82/298,787.71
  6. Step 6: Final answer
    x = 224,693.84

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1.5x scale

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.