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Finding the Third Proportional to 153,240.75 and 324,911.25

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Solution

The third proportional to 153,240.75 and 324,911.25 is: 688,898.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,240.75 : 324,911.25 = 324,911.25 : x
  2. Step 2: Convert to fraction form
    153,240.75/324,911.25 = 324,911.25/x
  3. Step 3: Cross multiply
    153,240.75x = 324,911.25 × 324,911.25
  4. Step 4: Simplify right side
    153,240.75x = 105,567,320,376.56
  5. Step 5: Solve for x
    x = 105,567,320,376.56/153,240.75
  6. Step 6: Final answer
    x = 688,898.48

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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.