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Finding the Fourth Proportional to 646,395.89, 969,593.84 and 203,163.89

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Solution

The fourth proportional to 646,395.89, 969,593.84 and 203,163.89 is: 304,745.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,395.89 : 969,593.84 = 203,163.89 : x
  2. Step 2: Convert to fraction form
    646,395.89/969,593.84 = 203,163.89/x
  3. Step 3: Cross multiply
    646,395.89x = 969,593.84 × 203,163.89
  4. Step 4: Simplify right side
    646,395.89x = 196,986,456,254.44
  5. Step 5: Solve for x
    x = 196,986,456,254.44/646,395.89
  6. Step 6: Final answer
    x = 304,745.84

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Double scale
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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.