Home / 218,971.44-302,091.78-154,534.20

Finding the Fourth Proportional to 218,971.44, 302,091.78 and 154,534.20

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Solution

The fourth proportional to 218,971.44, 302,091.78 and 154,534.20 is: 213,194.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,971.44 : 302,091.78 = 154,534.20 : x
  2. Step 2: Convert to fraction form
    218,971.44/302,091.78 = 154,534.20/x
  3. Step 3: Cross multiply
    218,971.44x = 302,091.78 × 154,534.20
  4. Step 4: Simplify right side
    218,971.44x = 46,683,511,548.88
  5. Step 5: Solve for x
    x = 46,683,511,548.88/218,971.44
  6. Step 6: Final answer
    x = 213,194.52

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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.