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Finding the Third Proportional to 153,041.25 and 324,609

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Solution

The third proportional to 153,041.25 and 324,609 is: 688,513.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,041.25 : 324,609 = 324,609 : x
  2. Step 2: Convert to fraction form
    153,041.25/324,609 = 324,609/x
  3. Step 3: Cross multiply
    153,041.25x = 324,609 × 324,609
  4. Step 4: Simplify right side
    153,041.25x = 105,371,002,881
  5. Step 5: Solve for x
    x = 105,371,002,881/153,041.25
  6. Step 6: Final answer
    x = 688,513.74

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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.