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Finding the Third Proportional to 199,428.50 and 299,289

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Solution

The third proportional to 199,428.50 and 299,289 is: 449,152.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,428.50 : 299,289 = 299,289 : x
  2. Step 2: Convert to fraction form
    199,428.50/299,289 = 299,289/x
  3. Step 3: Cross multiply
    199,428.50x = 299,289 × 299,289
  4. Step 4: Simplify right side
    199,428.50x = 89,573,905,521
  5. Step 5: Solve for x
    x = 89,573,905,521/199,428.50
  6. Step 6: Final answer
    x = 449,152.98

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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.