Home / 400,517.21-600,828.12-147,974.60

Finding the Fourth Proportional to 400,517.21, 600,828.12 and 147,974.60

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Solution

The fourth proportional to 400,517.21, 600,828.12 and 147,974.60 is: 221,981.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,517.21 : 600,828.12 = 147,974.60 : x
  2. Step 2: Convert to fraction form
    400,517.21/600,828.12 = 147,974.60/x
  3. Step 3: Cross multiply
    400,517.21x = 600,828.12 × 147,974.60
  4. Step 4: Simplify right side
    400,517.21x = 88,907,297,721.61
  5. Step 5: Solve for x
    x = 88,907,297,721.61/400,517.21
  6. Step 6: Final answer
    x = 221,981.22

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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.