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Finding the Third Proportional to 153,046.50 and 324,619.50

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Solution

The third proportional to 153,046.50 and 324,619.50 is: 688,534.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,046.50 : 324,619.50 = 324,619.50 : x
  2. Step 2: Convert to fraction form
    153,046.50/324,619.50 = 324,619.50/x
  3. Step 3: Cross multiply
    153,046.50x = 324,619.50 × 324,619.50
  4. Step 4: Simplify right side
    153,046.50x = 105,377,819,780.25
  5. Step 5: Solve for x
    x = 105,377,819,780.25/153,046.50
  6. Step 6: Final answer
    x = 688,534.66

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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.