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Finding the Third Proportional to 156,631 and 235,640

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Solution

The third proportional to 156,631 and 235,640 is: 354,503.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,631 : 235,640 = 235,640 : x
  2. Step 2: Convert to fraction form
    156,631/235,640 = 235,640/x
  3. Step 3: Cross multiply
    156,631x = 235,640 × 235,640
  4. Step 4: Simplify right side
    156,631x = 55,526,209,600
  5. Step 5: Solve for x
    x = 55,526,209,600/156,631
  6. Step 6: Final answer
    x = 354,503.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.