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Finding the Fourth Proportional to 647,355.75, 971,033.63 and 204,123.75

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Solution

The fourth proportional to 647,355.75, 971,033.63 and 204,123.75 is: 306,185.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,355.75 : 971,033.63 = 204,123.75 : x
  2. Step 2: Convert to fraction form
    647,355.75/971,033.63 = 204,123.75/x
  3. Step 3: Cross multiply
    647,355.75x = 971,033.63 × 204,123.75
  4. Step 4: Simplify right side
    647,355.75x = 198,211,024,911.09
  5. Step 5: Solve for x
    x = 198,211,024,911.09/647,355.75
  6. Step 6: Final answer
    x = 306,185.63

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Similar ratio
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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.