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Finding the Third Proportional to 141,367.78 and 308,139.19

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Solution

The third proportional to 141,367.78 and 308,139.19 is: 671,650.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,367.78 : 308,139.19 = 308,139.19 : x
  2. Step 2: Convert to fraction form
    141,367.78/308,139.19 = 308,139.19/x
  3. Step 3: Cross multiply
    141,367.78x = 308,139.19 × 308,139.19
  4. Step 4: Simplify right side
    141,367.78x = 94,949,758,873.16
  5. Step 5: Solve for x
    x = 94,949,758,873.16/141,367.78
  6. Step 6: Final answer
    x = 671,650.63

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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.