Home / 221,136.20-331,364.10-164,711.60

Finding the Fourth Proportional to 221,136.20, 331,364.10 and 164,711.60

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Solution

The fourth proportional to 221,136.20, 331,364.10 and 164,711.60 is: 246,814.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,136.20 : 331,364.10 = 164,711.60 : x
  2. Step 2: Convert to fraction form
    221,136.20/331,364.10 = 164,711.60/x
  3. Step 3: Cross multiply
    221,136.20x = 331,364.10 × 164,711.60
  4. Step 4: Simplify right side
    221,136.20x = 54,579,511,093.56
  5. Step 5: Solve for x
    x = 54,579,511,093.56/221,136.20
  6. Step 6: Final answer
    x = 246,814.00

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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.