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Finding the Third Proportional to 65,490 and 143,240.25

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Solution

The third proportional to 65,490 and 143,240.25 is: 313,296.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,490 : 143,240.25 = 143,240.25 : x
  2. Step 2: Convert to fraction form
    65,490/143,240.25 = 143,240.25/x
  3. Step 3: Cross multiply
    65,490x = 143,240.25 × 143,240.25
  4. Step 4: Simplify right side
    65,490x = 20,517,769,220.06
  5. Step 5: Solve for x
    x = 20,517,769,220.06/65,490
  6. Step 6: Final answer
    x = 313,296.22

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.