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Finding the Third Proportional to 102,280 and 218,775.50

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Solution

The third proportional to 102,280 and 218,775.50 is: 467,957.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,280 : 218,775.50 = 218,775.50 : x
  2. Step 2: Convert to fraction form
    102,280/218,775.50 = 218,775.50/x
  3. Step 3: Cross multiply
    102,280x = 218,775.50 × 218,775.50
  4. Step 4: Simplify right side
    102,280x = 47,862,719,400.25
  5. Step 5: Solve for x
    x = 47,862,719,400.25/102,280
  6. Step 6: Final answer
    x = 467,957.76

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.