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Finding the Third Proportional to 210,147 and 456,015

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Solution

The third proportional to 210,147 and 456,015 is: 989,543.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,147 : 456,015 = 456,015 : x
  2. Step 2: Convert to fraction form
    210,147/456,015 = 456,015/x
  3. Step 3: Cross multiply
    210,147x = 456,015 × 456,015
  4. Step 4: Simplify right side
    210,147x = 207,949,680,225
  5. Step 5: Solve for x
    x = 207,949,680,225/210,147
  6. Step 6: Final answer
    x = 989,543.89

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.