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Finding the Third Proportional to 217,360 and 448,688

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Solution

The third proportional to 217,360 and 448,688 is: 926,209.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,360 : 448,688 = 448,688 : x
  2. Step 2: Convert to fraction form
    217,360/448,688 = 448,688/x
  3. Step 3: Cross multiply
    217,360x = 448,688 × 448,688
  4. Step 4: Simplify right side
    217,360x = 201,320,921,344
  5. Step 5: Solve for x
    x = 201,320,921,344/217,360
  6. Step 6: Final answer
    x = 926,209.61

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.