Home / 398,206.32-597,102.12-187,787.76

Finding the Fourth Proportional to 398,206.32, 597,102.12 and 187,787.76

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Solution

The fourth proportional to 398,206.32, 597,102.12 and 187,787.76 is: 281,583.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,206.32 : 597,102.12 = 187,787.76 : x
  2. Step 2: Convert to fraction form
    398,206.32/597,102.12 = 187,787.76/x
  3. Step 3: Cross multiply
    398,206.32x = 597,102.12 × 187,787.76
  4. Step 4: Simplify right side
    398,206.32x = 112,128,469,606.05
  5. Step 5: Solve for x
    x = 112,128,469,606.05/398,206.32
  6. Step 6: Final answer
    x = 281,583.85

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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.