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Finding the Fourth Proportional to 219,614.60, 329,033.10 and 205,617.80

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Solution

The fourth proportional to 219,614.60, 329,033.10 and 205,617.80 is: 308,062.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,614.60 : 329,033.10 = 205,617.80 : x
  2. Step 2: Convert to fraction form
    219,614.60/329,033.10 = 205,617.80/x
  3. Step 3: Cross multiply
    219,614.60x = 329,033.10 × 205,617.80
  4. Step 4: Simplify right side
    219,614.60x = 67,655,062,149.18
  5. Step 5: Solve for x
    x = 67,655,062,149.18/219,614.60
  6. Step 6: Final answer
    x = 308,062.68

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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.