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Finding the Third Proportional to 217,356 and 460,880

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Solution

The third proportional to 217,356 and 460,880 is: 977,246.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,356 : 460,880 = 460,880 : x
  2. Step 2: Convert to fraction form
    217,356/460,880 = 460,880/x
  3. Step 3: Cross multiply
    217,356x = 460,880 × 460,880
  4. Step 4: Simplify right side
    217,356x = 212,410,374,400
  5. Step 5: Solve for x
    x = 212,410,374,400/217,356
  6. Step 6: Final answer
    x = 977,246.43

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.