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Finding the Fourth Proportional to 321,902.70, 444,280.70 and 185,912.21

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Solution

The fourth proportional to 321,902.70, 444,280.70 and 185,912.21 is: 256,590.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,902.70 : 444,280.70 = 185,912.21 : x
  2. Step 2: Convert to fraction form
    321,902.70/444,280.70 = 185,912.21/x
  3. Step 3: Cross multiply
    321,902.70x = 444,280.70 × 185,912.21
  4. Step 4: Simplify right side
    321,902.70x = 82,597,204,575.94
  5. Step 5: Solve for x
    x = 82,597,204,575.94/321,902.70
  6. Step 6: Final answer
    x = 256,590.59

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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.