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Finding the Third Proportional to 103,030.50 and 217,284

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Solution

The third proportional to 103,030.50 and 217,284 is: 458,236.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,030.50 : 217,284 = 217,284 : x
  2. Step 2: Convert to fraction form
    103,030.50/217,284 = 217,284/x
  3. Step 3: Cross multiply
    103,030.50x = 217,284 × 217,284
  4. Step 4: Simplify right side
    103,030.50x = 47,212,336,656
  5. Step 5: Solve for x
    x = 47,212,336,656/103,030.50
  6. Step 6: Final answer
    x = 458,236.51

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.