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Finding the Third Proportional to 103,485 and 156,038

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Solution

The third proportional to 103,485 and 156,038 is: 235,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,485 : 156,038 = 156,038 : x
  2. Step 2: Convert to fraction form
    103,485/156,038 = 156,038/x
  3. Step 3: Cross multiply
    103,485x = 156,038 × 156,038
  4. Step 4: Simplify right side
    103,485x = 24,347,857,444
  5. Step 5: Solve for x
    x = 24,347,857,444/103,485
  6. Step 6: Final answer
    x = 235,279.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.