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Finding the Third Proportional to 198,340 and 302,158

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Solution

The third proportional to 198,340 and 302,158 is: 460,317.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,340 : 302,158 = 302,158 : x
  2. Step 2: Convert to fraction form
    198,340/302,158 = 302,158/x
  3. Step 3: Cross multiply
    198,340x = 302,158 × 302,158
  4. Step 4: Simplify right side
    198,340x = 91,299,456,964
  5. Step 5: Solve for x
    x = 91,299,456,964/198,340
  6. Step 6: Final answer
    x = 460,317.92

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.