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Finding the Third Proportional to 231,630 and 349,905

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Solution

The third proportional to 231,630 and 349,905 is: 528,573.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,630 : 349,905 = 349,905 : x
  2. Step 2: Convert to fraction form
    231,630/349,905 = 349,905/x
  3. Step 3: Cross multiply
    231,630x = 349,905 × 349,905
  4. Step 4: Simplify right side
    231,630x = 122,433,509,025
  5. Step 5: Solve for x
    x = 122,433,509,025/231,630
  6. Step 6: Final answer
    x = 528,573.63

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.