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Finding the Third Proportional to 36,345 and 78,258

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Solution

The third proportional to 36,345 and 78,258 is: 168,505.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,345 : 78,258 = 78,258 : x
  2. Step 2: Convert to fraction form
    36,345/78,258 = 78,258/x
  3. Step 3: Cross multiply
    36,345x = 78,258 × 78,258
  4. Step 4: Simplify right side
    36,345x = 6,124,314,564
  5. Step 5: Solve for x
    x = 6,124,314,564/36,345
  6. Step 6: Final answer
    x = 168,505.01

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.