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Finding the Third Proportional to 151,389 and 328,536

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Solution

The third proportional to 151,389 and 328,536 is: 712,970.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,389 : 328,536 = 328,536 : x
  2. Step 2: Convert to fraction form
    151,389/328,536 = 328,536/x
  3. Step 3: Cross multiply
    151,389x = 328,536 × 328,536
  4. Step 4: Simplify right side
    151,389x = 107,935,903,296
  5. Step 5: Solve for x
    x = 107,935,903,296/151,389
  6. Step 6: Final answer
    x = 712,970.58

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.