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Finding the Third Proportional to 55,366.50 and 129,981.75

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Solution

The third proportional to 55,366.50 and 129,981.75 is: 305,153.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,366.50 : 129,981.75 = 129,981.75 : x
  2. Step 2: Convert to fraction form
    55,366.50/129,981.75 = 129,981.75/x
  3. Step 3: Cross multiply
    55,366.50x = 129,981.75 × 129,981.75
  4. Step 4: Simplify right side
    55,366.50x = 16,895,255,333.06
  5. Step 5: Solve for x
    x = 16,895,255,333.06/55,366.50
  6. Step 6: Final answer
    x = 305,153.03

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.