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Finding the Third Proportional to 291,192 and 617,376

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Solution

The third proportional to 291,192 and 617,376 is: 1,308,940.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,192 : 617,376 = 617,376 : x
  2. Step 2: Convert to fraction form
    291,192/617,376 = 617,376/x
  3. Step 3: Cross multiply
    291,192x = 617,376 × 617,376
  4. Step 4: Simplify right side
    291,192x = 381,153,125,376
  5. Step 5: Solve for x
    x = 381,153,125,376/291,192
  6. Step 6: Final answer
    x = 1,308,940.92

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.