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Finding the Third Proportional to 131,287.13 and 286,336.13

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Solution

The third proportional to 131,287.13 and 286,336.13 is: 624,496.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,287.13 : 286,336.13 = 286,336.13 : x
  2. Step 2: Convert to fraction form
    131,287.13/286,336.13 = 286,336.13/x
  3. Step 3: Cross multiply
    131,287.13x = 286,336.13 × 286,336.13
  4. Step 4: Simplify right side
    131,287.13x = 81,988,376,480.02
  5. Step 5: Solve for x
    x = 81,988,376,480.02/131,287.13
  6. Step 6: Final answer
    x = 624,496.70

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.