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Finding the Fourth Proportional to 551,660.20, 827,490.30 and 214,716.40

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Solution

The fourth proportional to 551,660.20, 827,490.30 and 214,716.40 is: 322,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,660.20 : 827,490.30 = 214,716.40 : x
  2. Step 2: Convert to fraction form
    551,660.20/827,490.30 = 214,716.40/x
  3. Step 3: Cross multiply
    551,660.20x = 827,490.30 × 214,716.40
  4. Step 4: Simplify right side
    551,660.20x = 177,675,738,250.92
  5. Step 5: Solve for x
    x = 177,675,738,250.92/551,660.20
  6. Step 6: Final answer
    x = 322,074.60

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Similar ratio
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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.