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Finding the Third Proportional to 219,135 and 292,617

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Solution

The third proportional to 219,135 and 292,617 is: 390,739.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,135 : 292,617 = 292,617 : x
  2. Step 2: Convert to fraction form
    219,135/292,617 = 292,617/x
  3. Step 3: Cross multiply
    219,135x = 292,617 × 292,617
  4. Step 4: Simplify right side
    219,135x = 85,624,708,689
  5. Step 5: Solve for x
    x = 85,624,708,689/219,135
  6. Step 6: Final answer
    x = 390,739.54

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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.