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Finding the Third Proportional to 356,427 and 518,602.50

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Solution

The third proportional to 356,427 and 518,602.50 is: 754,568.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,427 : 518,602.50 = 518,602.50 : x
  2. Step 2: Convert to fraction form
    356,427/518,602.50 = 518,602.50/x
  3. Step 3: Cross multiply
    356,427x = 518,602.50 × 518,602.50
  4. Step 4: Simplify right side
    356,427x = 268,948,553,006.25
  5. Step 5: Solve for x
    x = 268,948,553,006.25/356,427
  6. Step 6: Final answer
    x = 754,568.41

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.