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Finding the Third Proportional to 217,958 and 292,323

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Solution

The third proportional to 217,958 and 292,323 is: 392,060.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,958 : 292,323 = 292,323 : x
  2. Step 2: Convert to fraction form
    217,958/292,323 = 292,323/x
  3. Step 3: Cross multiply
    217,958x = 292,323 × 292,323
  4. Step 4: Simplify right side
    217,958x = 85,452,736,329
  5. Step 5: Solve for x
    x = 85,452,736,329/217,958
  6. Step 6: Final answer
    x = 392,060.56

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.