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Finding the Fourth Proportional to 218,414.82, 301,422.15 and 122,927.70

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Solution

The fourth proportional to 218,414.82, 301,422.15 and 122,927.70 is: 169,645.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,414.82 : 301,422.15 = 122,927.70 : x
  2. Step 2: Convert to fraction form
    218,414.82/301,422.15 = 122,927.70/x
  3. Step 3: Cross multiply
    218,414.82x = 301,422.15 × 122,927.70
  4. Step 4: Simplify right side
    218,414.82x = 37,053,131,628.56
  5. Step 5: Solve for x
    x = 37,053,131,628.56/218,414.82
  6. Step 6: Final answer
    x = 169,645.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.