Home / 218,917.49-302,094.39-123,418.02

Finding the Fourth Proportional to 218,917.49, 302,094.39 and 123,418.02

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Solution

The fourth proportional to 218,917.49, 302,094.39 and 123,418.02 is: 170,310.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,917.49 : 302,094.39 = 123,418.02 : x
  2. Step 2: Convert to fraction form
    218,917.49/302,094.39 = 123,418.02/x
  3. Step 3: Cross multiply
    218,917.49x = 302,094.39 × 123,418.02
  4. Step 4: Simplify right side
    218,917.49x = 37,283,893,062.58
  5. Step 5: Solve for x
    x = 37,283,893,062.58/218,917.49
  6. Step 6: Final answer
    x = 170,310.26

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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.