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Finding the Fourth Proportional to 326,396.80, 488,660.80 and 200,892.80

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Solution

The fourth proportional to 326,396.80, 488,660.80 and 200,892.80 is: 300,764.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,396.80 : 488,660.80 = 200,892.80 : x
  2. Step 2: Convert to fraction form
    326,396.80/488,660.80 = 200,892.80/x
  3. Step 3: Cross multiply
    326,396.80x = 488,660.80 × 200,892.80
  4. Step 4: Simplify right side
    326,396.80x = 98,168,436,362.24
  5. Step 5: Solve for x
    x = 98,168,436,362.24/326,396.80
  6. Step 6: Final answer
    x = 300,764.09

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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.