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Finding the Fourth Proportional to 323,626.90, 485,440.35 and 217,873.30

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Solution

The fourth proportional to 323,626.90, 485,440.35 and 217,873.30 is: 326,809.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,626.90 : 485,440.35 = 217,873.30 : x
  2. Step 2: Convert to fraction form
    323,626.90/485,440.35 = 217,873.30/x
  3. Step 3: Cross multiply
    323,626.90x = 485,440.35 × 217,873.30
  4. Step 4: Simplify right side
    323,626.90x = 105,764,491,007.66
  5. Step 5: Solve for x
    x = 105,764,491,007.66/323,626.90
  6. Step 6: Final answer
    x = 326,809.95

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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.