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Finding the Third Proportional to 113,679 and 178,335

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Solution

The third proportional to 113,679 and 178,335 is: 279,764.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,679 : 178,335 = 178,335 : x
  2. Step 2: Convert to fraction form
    113,679/178,335 = 178,335/x
  3. Step 3: Cross multiply
    113,679x = 178,335 × 178,335
  4. Step 4: Simplify right side
    113,679x = 31,803,372,225
  5. Step 5: Solve for x
    x = 31,803,372,225/113,679
  6. Step 6: Final answer
    x = 279,764.71

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.