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Finding the Fourth Proportional to 299,878.55, 449,896.60 and 107,772.37

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Solution

The fourth proportional to 299,878.55, 449,896.60 and 107,772.37 is: 161,686.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,878.55 : 449,896.60 = 107,772.37 : x
  2. Step 2: Convert to fraction form
    299,878.55/449,896.60 = 107,772.37/x
  3. Step 3: Cross multiply
    299,878.55x = 449,896.60 × 107,772.37
  4. Step 4: Simplify right side
    299,878.55x = 48,486,423,692.25
  5. Step 5: Solve for x
    x = 48,486,423,692.25/299,878.55
  6. Step 6: Final answer
    x = 161,686.87

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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.