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Finding the Third Proportional to 135,254 and 291,292

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Solution

The third proportional to 135,254 and 291,292 is: 627,345.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,254 : 291,292 = 291,292 : x
  2. Step 2: Convert to fraction form
    135,254/291,292 = 291,292/x
  3. Step 3: Cross multiply
    135,254x = 291,292 × 291,292
  4. Step 4: Simplify right side
    135,254x = 84,851,029,264
  5. Step 5: Solve for x
    x = 84,851,029,264/135,254
  6. Step 6: Final answer
    x = 627,345.80

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.