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Finding the Third Proportional to 207,312 and 427,710

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Solution

The third proportional to 207,312 and 427,710 is: 882,418.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,312 : 427,710 = 427,710 : x
  2. Step 2: Convert to fraction form
    207,312/427,710 = 427,710/x
  3. Step 3: Cross multiply
    207,312x = 427,710 × 427,710
  4. Step 4: Simplify right side
    207,312x = 182,935,844,100
  5. Step 5: Solve for x
    x = 182,935,844,100/207,312
  6. Step 6: Final answer
    x = 882,418.02

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.