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Finding the Third Proportional to 156,710 and 338,360

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Solution

The third proportional to 156,710 and 338,360 is: 730,569.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,710 : 338,360 = 338,360 : x
  2. Step 2: Convert to fraction form
    156,710/338,360 = 338,360/x
  3. Step 3: Cross multiply
    156,710x = 338,360 × 338,360
  4. Step 4: Simplify right side
    156,710x = 114,487,489,600
  5. Step 5: Solve for x
    x = 114,487,489,600/156,710
  6. Step 6: Final answer
    x = 730,569.14

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.