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Finding the Third Proportional to 152,154 and 220,410

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Solution

The third proportional to 152,154 and 220,410 is: 319,285.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,154 : 220,410 = 220,410 : x
  2. Step 2: Convert to fraction form
    152,154/220,410 = 220,410/x
  3. Step 3: Cross multiply
    152,154x = 220,410 × 220,410
  4. Step 4: Simplify right side
    152,154x = 48,580,568,100
  5. Step 5: Solve for x
    x = 48,580,568,100/152,154
  6. Step 6: Final answer
    x = 319,285.51

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.