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Finding the Fourth Proportional to 201,122.30, 301,792.80 and 82,805.60

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Solution

The fourth proportional to 201,122.30, 301,792.80 and 82,805.60 is: 124,253.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,122.30 : 301,792.80 = 82,805.60 : x
  2. Step 2: Convert to fraction form
    201,122.30/301,792.80 = 82,805.60/x
  3. Step 3: Cross multiply
    201,122.30x = 301,792.80 × 82,805.60
  4. Step 4: Simplify right side
    201,122.30x = 24,990,133,879.68
  5. Step 5: Solve for x
    x = 24,990,133,879.68/201,122.30
  6. Step 6: Final answer
    x = 124,253.42

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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.