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Finding the Third Proportional to 85,730 and 185,716

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Solution

The third proportional to 85,730 and 185,716 is: 402,314.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,730 : 185,716 = 185,716 : x
  2. Step 2: Convert to fraction form
    85,730/185,716 = 185,716/x
  3. Step 3: Cross multiply
    85,730x = 185,716 × 185,716
  4. Step 4: Simplify right side
    85,730x = 34,490,432,656
  5. Step 5: Solve for x
    x = 34,490,432,656/85,730
  6. Step 6: Final answer
    x = 402,314.62

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.