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Finding the Fourth Proportional to 322,682.40, 484,023.60 and 204,487.20

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Solution

The fourth proportional to 322,682.40, 484,023.60 and 204,487.20 is: 306,730.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,682.40 : 484,023.60 = 204,487.20 : x
  2. Step 2: Convert to fraction form
    322,682.40/484,023.60 = 204,487.20/x
  3. Step 3: Cross multiply
    322,682.40x = 484,023.60 × 204,487.20
  4. Step 4: Simplify right side
    322,682.40x = 98,976,630,697.92
  5. Step 5: Solve for x
    x = 98,976,630,697.92/322,682.40
  6. Step 6: Final answer
    x = 306,730.80

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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.