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Finding the Fourth Proportional to 299,977.56, 450,090.54 and 131,410.80

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Solution

The fourth proportional to 299,977.56, 450,090.54 and 131,410.80 is: 197,170.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,977.56 : 450,090.54 = 131,410.80 : x
  2. Step 2: Convert to fraction form
    299,977.56/450,090.54 = 131,410.80/x
  3. Step 3: Cross multiply
    299,977.56x = 450,090.54 × 131,410.80
  4. Step 4: Simplify right side
    299,977.56x = 59,146,757,933.83
  5. Step 5: Solve for x
    x = 59,146,757,933.83/299,977.56
  6. Step 6: Final answer
    x = 197,170.61

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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.