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Finding the Fourth Proportional to 299,669.60, 449,439.60 and 131,189.60

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Solution

The fourth proportional to 299,669.60, 449,439.60 and 131,189.60 is: 196,756.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,669.60 : 449,439.60 = 131,189.60 : x
  2. Step 2: Convert to fraction form
    299,669.60/449,439.60 = 131,189.60/x
  3. Step 3: Cross multiply
    299,669.60x = 449,439.60 × 131,189.60
  4. Step 4: Simplify right side
    299,669.60x = 58,961,801,348.16
  5. Step 5: Solve for x
    x = 58,961,801,348.16/299,669.60
  6. Step 6: Final answer
    x = 196,756.03

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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.