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Finding the Fourth Proportional to 201,191.60, 301,823.85 and 101,099.90

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Solution

The fourth proportional to 201,191.60, 301,823.85 and 101,099.90 is: 151,668.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,191.60 : 301,823.85 = 101,099.90 : x
  2. Step 2: Convert to fraction form
    201,191.60/301,823.85 = 101,099.90/x
  3. Step 3: Cross multiply
    201,191.60x = 301,823.85 × 101,099.90
  4. Step 4: Simplify right side
    201,191.60x = 30,514,361,052.62
  5. Step 5: Solve for x
    x = 30,514,361,052.62/201,191.60
  6. Step 6: Final answer
    x = 151,668.17

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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.