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Finding the Third Proportional to 131,127 and 286,878

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Solution

The third proportional to 131,127 and 286,878 is: 627,628.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,127 : 286,878 = 286,878 : x
  2. Step 2: Convert to fraction form
    131,127/286,878 = 286,878/x
  3. Step 3: Cross multiply
    131,127x = 286,878 × 286,878
  4. Step 4: Simplify right side
    131,127x = 82,298,986,884
  5. Step 5: Solve for x
    x = 82,298,986,884/131,127
  6. Step 6: Final answer
    x = 627,628.08

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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.