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Finding the Fourth Proportional to 299,393.64, 449,230.54 and 130,892.12

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Solution

The fourth proportional to 299,393.64, 449,230.54 and 130,892.12 is: 196,399.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,393.64 : 449,230.54 = 130,892.12 : x
  2. Step 2: Convert to fraction form
    299,393.64/449,230.54 = 130,892.12/x
  3. Step 3: Cross multiply
    299,393.64x = 449,230.54 × 130,892.12
  4. Step 4: Simplify right side
    299,393.64x = 58,800,737,749.34
  5. Step 5: Solve for x
    x = 58,800,737,749.34/299,393.64
  6. Step 6: Final answer
    x = 196,399.42

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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.