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Finding the Third Proportional to 103,268 and 145,428

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Solution

The third proportional to 103,268 and 145,428 is: 204,800.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,268 : 145,428 = 145,428 : x
  2. Step 2: Convert to fraction form
    103,268/145,428 = 145,428/x
  3. Step 3: Cross multiply
    103,268x = 145,428 × 145,428
  4. Step 4: Simplify right side
    103,268x = 21,149,303,184
  5. Step 5: Solve for x
    x = 21,149,303,184/103,268
  6. Step 6: Final answer
    x = 204,800.16

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.