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Finding the Third Proportional to 207,040 and 291,480

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Solution

The third proportional to 207,040 and 291,480 is: 410,358.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,040 : 291,480 = 291,480 : x
  2. Step 2: Convert to fraction form
    207,040/291,480 = 291,480/x
  3. Step 3: Cross multiply
    207,040x = 291,480 × 291,480
  4. Step 4: Simplify right side
    207,040x = 84,960,590,400
  5. Step 5: Solve for x
    x = 84,960,590,400/207,040
  6. Step 6: Final answer
    x = 410,358.34

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.