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Finding the Third Proportional to 291,152 and 617,296

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Solution

The third proportional to 291,152 and 617,296 is: 1,308,781.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,152 : 617,296 = 617,296 : x
  2. Step 2: Convert to fraction form
    291,152/617,296 = 617,296/x
  3. Step 3: Cross multiply
    291,152x = 617,296 × 617,296
  4. Step 4: Simplify right side
    291,152x = 381,054,351,616
  5. Step 5: Solve for x
    x = 381,054,351,616/291,152
  6. Step 6: Final answer
    x = 1,308,781.50

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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.