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Finding the Third Proportional to 330,027 and 510,195

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Solution

The third proportional to 330,027 and 510,195 is: 788,720.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,027 : 510,195 = 510,195 : x
  2. Step 2: Convert to fraction form
    330,027/510,195 = 510,195/x
  3. Step 3: Cross multiply
    330,027x = 510,195 × 510,195
  4. Step 4: Simplify right side
    330,027x = 260,298,938,025
  5. Step 5: Solve for x
    x = 260,298,938,025/330,027
  6. Step 6: Final answer
    x = 788,720.13

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.