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Finding the Fourth Proportional to 299,731.35, 449,211.56 and 141,611.25

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Solution

The fourth proportional to 299,731.35, 449,211.56 and 141,611.25 is: 212,234.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,731.35 : 449,211.56 = 141,611.25 : x
  2. Step 2: Convert to fraction form
    299,731.35/449,211.56 = 141,611.25/x
  3. Step 3: Cross multiply
    299,731.35x = 449,211.56 × 141,611.25
  4. Step 4: Simplify right side
    299,731.35x = 63,613,410,526.05
  5. Step 5: Solve for x
    x = 63,613,410,526.05/299,731.35
  6. Step 6: Final answer
    x = 212,234.76

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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.