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Finding the Third Proportional to 79,430 and 117,297

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Solution

The third proportional to 79,430 and 117,297 is: 173,216.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,430 : 117,297 = 117,297 : x
  2. Step 2: Convert to fraction form
    79,430/117,297 = 117,297/x
  3. Step 3: Cross multiply
    79,430x = 117,297 × 117,297
  4. Step 4: Simplify right side
    79,430x = 13,758,586,209
  5. Step 5: Solve for x
    x = 13,758,586,209/79,430
  6. Step 6: Final answer
    x = 173,216.50

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.