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Finding the Fourth Proportional to 201,911.30, 302,538.90 and 168,450.20

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Solution

The fourth proportional to 201,911.30, 302,538.90 and 168,450.20 is: 252,401.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,911.30 : 302,538.90 = 168,450.20 : x
  2. Step 2: Convert to fraction form
    201,911.30/302,538.90 = 168,450.20/x
  3. Step 3: Cross multiply
    201,911.30x = 302,538.90 × 168,450.20
  4. Step 4: Simplify right side
    201,911.30x = 50,962,738,212.78
  5. Step 5: Solve for x
    x = 50,962,738,212.78/201,911.30
  6. Step 6: Final answer
    x = 252,401.62

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1.5x scale

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.