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Finding the Third Proportional to 90,258.75 and 140,322.38

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Solution

The third proportional to 90,258.75 and 140,322.38 is: 218,154.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,258.75 : 140,322.38 = 140,322.38 : x
  2. Step 2: Convert to fraction form
    90,258.75/140,322.38 = 140,322.38/x
  3. Step 3: Cross multiply
    90,258.75x = 140,322.38 × 140,322.38
  4. Step 4: Simplify right side
    90,258.75x = 19,690,368,925.64
  5. Step 5: Solve for x
    x = 19,690,368,925.64/90,258.75
  6. Step 6: Final answer
    x = 218,154.68

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.