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Finding the Third Proportional to 122,836.50 and 260,434.50

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Solution

The third proportional to 122,836.50 and 260,434.50 is: 552,165.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,836.50 : 260,434.50 = 260,434.50 : x
  2. Step 2: Convert to fraction form
    122,836.50/260,434.50 = 260,434.50/x
  3. Step 3: Cross multiply
    122,836.50x = 260,434.50 × 260,434.50
  4. Step 4: Simplify right side
    122,836.50x = 67,826,128,790.25
  5. Step 5: Solve for x
    x = 67,826,128,790.25/122,836.50
  6. Step 6: Final answer
    x = 552,165.92

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.