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Finding the Third Proportional to 70,916 and 145,484

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Solution

The third proportional to 70,916 and 145,484 is: 298,460.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,916 : 145,484 = 145,484 : x
  2. Step 2: Convert to fraction form
    70,916/145,484 = 145,484/x
  3. Step 3: Cross multiply
    70,916x = 145,484 × 145,484
  4. Step 4: Simplify right side
    70,916x = 21,165,594,256
  5. Step 5: Solve for x
    x = 21,165,594,256/70,916
  6. Step 6: Final answer
    x = 298,460.07

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.