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Finding the Fourth Proportional to 647,356.75, 971,035.13 and 204,124.75

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Solution

The fourth proportional to 647,356.75, 971,035.13 and 204,124.75 is: 306,187.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,356.75 : 971,035.13 = 204,124.75 : x
  2. Step 2: Convert to fraction form
    647,356.75/971,035.13 = 204,124.75/x
  3. Step 3: Cross multiply
    647,356.75x = 971,035.13 × 204,124.75
  4. Step 4: Simplify right side
    647,356.75x = 198,212,303,152.47
  5. Step 5: Solve for x
    x = 198,212,303,152.47/647,356.75
  6. Step 6: Final answer
    x = 306,187.13

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Similar ratio
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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.