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Finding the Third Proportional to 207,370 and 429,500

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Solution

The third proportional to 207,370 and 429,500 is: 889,570.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,370 : 429,500 = 429,500 : x
  2. Step 2: Convert to fraction form
    207,370/429,500 = 429,500/x
  3. Step 3: Cross multiply
    207,370x = 429,500 × 429,500
  4. Step 4: Simplify right side
    207,370x = 184,470,250,000
  5. Step 5: Solve for x
    x = 184,470,250,000/207,370
  6. Step 6: Final answer
    x = 889,570.57

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.