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Finding the Fourth Proportional to 299,903.40, 449,863.20 and 131,337

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Solution

The fourth proportional to 299,903.40, 449,863.20 and 131,337 is: 197,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,903.40 : 449,863.20 = 131,337 : x
  2. Step 2: Convert to fraction form
    299,903.40/449,863.20 = 131,337/x
  3. Step 3: Cross multiply
    299,903.40x = 449,863.20 × 131,337
  4. Step 4: Simplify right side
    299,903.40x = 59,083,683,098.40
  5. Step 5: Solve for x
    x = 59,083,683,098.40/299,903.40
  6. Step 6: Final answer
    x = 197,009.05

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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.