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Finding the Third Proportional to 155,220 and 246,195

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Solution

The third proportional to 155,220 and 246,195 is: 390,490.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,220 : 246,195 = 246,195 : x
  2. Step 2: Convert to fraction form
    155,220/246,195 = 246,195/x
  3. Step 3: Cross multiply
    155,220x = 246,195 × 246,195
  4. Step 4: Simplify right side
    155,220x = 60,611,978,025
  5. Step 5: Solve for x
    x = 60,611,978,025/155,220
  6. Step 6: Final answer
    x = 390,490.77

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.