Home / 218,419.82-301,429.06-122,932.70

Finding the Fourth Proportional to 218,419.82, 301,429.06 and 122,932.70

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Solution

The fourth proportional to 218,419.82, 301,429.06 and 122,932.70 is: 169,652.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,419.82 : 301,429.06 = 122,932.70 : x
  2. Step 2: Convert to fraction form
    218,419.82/301,429.06 = 122,932.70/x
  3. Step 3: Cross multiply
    218,419.82x = 301,429.06 × 122,932.70
  4. Step 4: Simplify right side
    218,419.82x = 37,055,488,204.26
  5. Step 5: Solve for x
    x = 37,055,488,204.26/218,419.82
  6. Step 6: Final answer
    x = 169,652.59

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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.