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Finding the Third Proportional to 155,718 and 240,837

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Solution

The third proportional to 155,718 and 240,837 is: 372,483.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,718 : 240,837 = 240,837 : x
  2. Step 2: Convert to fraction form
    155,718/240,837 = 240,837/x
  3. Step 3: Cross multiply
    155,718x = 240,837 × 240,837
  4. Step 4: Simplify right side
    155,718x = 58,002,460,569
  5. Step 5: Solve for x
    x = 58,002,460,569/155,718
  6. Step 6: Final answer
    x = 372,483.98

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.