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Finding the Third Proportional to 39,216 and 85,482

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Solution

The third proportional to 39,216 and 85,482 is: 186,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,216 : 85,482 = 85,482 : x
  2. Step 2: Convert to fraction form
    39,216/85,482 = 85,482/x
  3. Step 3: Cross multiply
    39,216x = 85,482 × 85,482
  4. Step 4: Simplify right side
    39,216x = 7,307,172,324
  5. Step 5: Solve for x
    x = 7,307,172,324/39,216
  6. Step 6: Final answer
    x = 186,331.40

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.