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Finding the Third Proportional to 151,740 and 328,085

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Solution

The third proportional to 151,740 and 328,085 is: 709,369.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,740 : 328,085 = 328,085 : x
  2. Step 2: Convert to fraction form
    151,740/328,085 = 328,085/x
  3. Step 3: Cross multiply
    151,740x = 328,085 × 328,085
  4. Step 4: Simplify right side
    151,740x = 107,639,767,225
  5. Step 5: Solve for x
    x = 107,639,767,225/151,740
  6. Step 6: Final answer
    x = 709,369.76

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.