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Finding the Third Proportional to 128,350.50 and 273,325.50

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Solution

The third proportional to 128,350.50 and 273,325.50 is: 582,053.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,350.50 : 273,325.50 = 273,325.50 : x
  2. Step 2: Convert to fraction form
    128,350.50/273,325.50 = 273,325.50/x
  3. Step 3: Cross multiply
    128,350.50x = 273,325.50 × 273,325.50
  4. Step 4: Simplify right side
    128,350.50x = 74,706,828,950.25
  5. Step 5: Solve for x
    x = 74,706,828,950.25/128,350.50
  6. Step 6: Final answer
    x = 582,053.28

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.