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Finding the Third Proportional to 118,135 and 257,006

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Solution

The third proportional to 118,135 and 257,006 is: 559,123.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,135 : 257,006 = 257,006 : x
  2. Step 2: Convert to fraction form
    118,135/257,006 = 257,006/x
  3. Step 3: Cross multiply
    118,135x = 257,006 × 257,006
  4. Step 4: Simplify right side
    118,135x = 66,052,084,036
  5. Step 5: Solve for x
    x = 66,052,084,036/118,135
  6. Step 6: Final answer
    x = 559,123.75

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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.