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Finding the Third Proportional to 52,121 and 122,916.50

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Solution

The third proportional to 52,121 and 122,916.50 is: 289,872.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,121 : 122,916.50 = 122,916.50 : x
  2. Step 2: Convert to fraction form
    52,121/122,916.50 = 122,916.50/x
  3. Step 3: Cross multiply
    52,121x = 122,916.50 × 122,916.50
  4. Step 4: Simplify right side
    52,121x = 15,108,465,972.25
  5. Step 5: Solve for x
    x = 15,108,465,972.25/52,121
  6. Step 6: Final answer
    x = 289,872.91

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.