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Finding the Third Proportional to 251,102 and 391,881

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Solution

The third proportional to 251,102 and 391,881 is: 611,587.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,102 : 391,881 = 391,881 : x
  2. Step 2: Convert to fraction form
    251,102/391,881 = 391,881/x
  3. Step 3: Cross multiply
    251,102x = 391,881 × 391,881
  4. Step 4: Simplify right side
    251,102x = 153,570,718,161
  5. Step 5: Solve for x
    x = 153,570,718,161/251,102
  6. Step 6: Final answer
    x = 611,587.00

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.