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Finding the Fourth Proportional to 201,910.30, 302,537.40 and 168,449.20

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Solution

The fourth proportional to 201,910.30, 302,537.40 and 168,449.20 is: 252,400.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,910.30 : 302,537.40 = 168,449.20 : x
  2. Step 2: Convert to fraction form
    201,910.30/302,537.40 = 168,449.20/x
  3. Step 3: Cross multiply
    201,910.30x = 302,537.40 × 168,449.20
  4. Step 4: Simplify right side
    201,910.30x = 50,962,183,000.08
  5. Step 5: Solve for x
    x = 50,962,183,000.08/201,910.30
  6. Step 6: Final answer
    x = 252,400.12

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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.