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Finding the Third Proportional to 128,855.25 and 193,527

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Solution

The third proportional to 128,855.25 and 193,527 is: 290,657.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,855.25 : 193,527 = 193,527 : x
  2. Step 2: Convert to fraction form
    128,855.25/193,527 = 193,527/x
  3. Step 3: Cross multiply
    128,855.25x = 193,527 × 193,527
  4. Step 4: Simplify right side
    128,855.25x = 37,452,699,729
  5. Step 5: Solve for x
    x = 37,452,699,729/128,855.25
  6. Step 6: Final answer
    x = 290,657.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.