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Finding the Third Proportional to 221,564.75 and 343,727.75

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Solution

The third proportional to 221,564.75 and 343,727.75 is: 533,247.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,564.75 : 343,727.75 = 343,727.75 : x
  2. Step 2: Convert to fraction form
    221,564.75/343,727.75 = 343,727.75/x
  3. Step 3: Cross multiply
    221,564.75x = 343,727.75 × 343,727.75
  4. Step 4: Simplify right side
    221,564.75x = 118,148,766,120.06
  5. Step 5: Solve for x
    x = 118,148,766,120.06/221,564.75
  6. Step 6: Final answer
    x = 533,247.13

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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.