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Finding the Fourth Proportional to 299,859.60, 449,936 and 131,356.92

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Solution

The fourth proportional to 299,859.60, 449,936 and 131,356.92 is: 197,099.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,859.60 : 449,936 = 131,356.92 : x
  2. Step 2: Convert to fraction form
    299,859.60/449,936 = 131,356.92/x
  3. Step 3: Cross multiply
    299,859.60x = 449,936 × 131,356.92
  4. Step 4: Simplify right side
    299,859.60x = 59,102,207,157.12
  5. Step 5: Solve for x
    x = 59,102,207,157.12/299,859.60
  6. Step 6: Final answer
    x = 197,099.60

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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.