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Finding the Third Proportional to 156,640 and 235,328

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Solution

The third proportional to 156,640 and 235,328 is: 353,544.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,640 : 235,328 = 235,328 : x
  2. Step 2: Convert to fraction form
    156,640/235,328 = 235,328/x
  3. Step 3: Cross multiply
    156,640x = 235,328 × 235,328
  4. Step 4: Simplify right side
    156,640x = 55,379,267,584
  5. Step 5: Solve for x
    x = 55,379,267,584/156,640
  6. Step 6: Final answer
    x = 353,544.86

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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.