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Finding the Third Proportional to 155,718 and 340,758

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Solution

The third proportional to 155,718 and 340,758 is: 745,681.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,718 : 340,758 = 340,758 : x
  2. Step 2: Convert to fraction form
    155,718/340,758 = 340,758/x
  3. Step 3: Cross multiply
    155,718x = 340,758 × 340,758
  4. Step 4: Simplify right side
    155,718x = 116,116,014,564
  5. Step 5: Solve for x
    x = 116,116,014,564/155,718
  6. Step 6: Final answer
    x = 745,681.39

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.