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Finding the Fourth Proportional to 299,976.60, 449,900.10 and 131,496.60

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Solution

The fourth proportional to 299,976.60, 449,900.10 and 131,496.60 is: 197,216.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,976.60 : 449,900.10 = 131,496.60 : x
  2. Step 2: Convert to fraction form
    299,976.60/449,900.10 = 131,496.60/x
  3. Step 3: Cross multiply
    299,976.60x = 449,900.10 × 131,496.60
  4. Step 4: Simplify right side
    299,976.60x = 59,160,333,489.66
  5. Step 5: Solve for x
    x = 59,160,333,489.66/299,976.60
  6. Step 6: Final answer
    x = 197,216.49

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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.