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Finding the Third Proportional to 67,330 and 145,803

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Solution

The third proportional to 67,330 and 145,803 is: 315,736.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,330 : 145,803 = 145,803 : x
  2. Step 2: Convert to fraction form
    67,330/145,803 = 145,803/x
  3. Step 3: Cross multiply
    67,330x = 145,803 × 145,803
  4. Step 4: Simplify right side
    67,330x = 21,258,514,809
  5. Step 5: Solve for x
    x = 21,258,514,809/67,330
  6. Step 6: Final answer
    x = 315,736.15

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.