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Finding the Third Proportional to 161,392 and 250,928

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Solution

The third proportional to 161,392 and 250,928 is: 390,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,392 : 250,928 = 250,928 : x
  2. Step 2: Convert to fraction form
    161,392/250,928 = 250,928/x
  3. Step 3: Cross multiply
    161,392x = 250,928 × 250,928
  4. Step 4: Simplify right side
    161,392x = 62,964,861,184
  5. Step 5: Solve for x
    x = 62,964,861,184/161,392
  6. Step 6: Final answer
    x = 390,136.20

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.