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Finding the Third Proportional to 143,890 and 293,490

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Solution

The third proportional to 143,890 and 293,490 is: 598,626.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,890 : 293,490 = 293,490 : x
  2. Step 2: Convert to fraction form
    143,890/293,490 = 293,490/x
  3. Step 3: Cross multiply
    143,890x = 293,490 × 293,490
  4. Step 4: Simplify right side
    143,890x = 86,136,380,100
  5. Step 5: Solve for x
    x = 86,136,380,100/143,890
  6. Step 6: Final answer
    x = 598,626.59

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.