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Finding the Third Proportional to 85,854 and 186,479

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Solution

The third proportional to 85,854 and 186,479 is: 405,041.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,854 : 186,479 = 186,479 : x
  2. Step 2: Convert to fraction form
    85,854/186,479 = 186,479/x
  3. Step 3: Cross multiply
    85,854x = 186,479 × 186,479
  4. Step 4: Simplify right side
    85,854x = 34,774,417,441
  5. Step 5: Solve for x
    x = 34,774,417,441/85,854
  6. Step 6: Final answer
    x = 405,041.32

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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.