Home / 218,086.10-300,862.34-145,418.93

Finding the Fourth Proportional to 218,086.10, 300,862.34 and 145,418.93

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Solution

The fourth proportional to 218,086.10, 300,862.34 and 145,418.93 is: 200,613.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,086.10 : 300,862.34 = 145,418.93 : x
  2. Step 2: Convert to fraction form
    218,086.10/300,862.34 = 145,418.93/x
  3. Step 3: Cross multiply
    218,086.10x = 300,862.34 × 145,418.93
  4. Step 4: Simplify right side
    218,086.10x = 43,751,079,083.35
  5. Step 5: Solve for x
    x = 43,751,079,083.35/218,086.10
  6. Step 6: Final answer
    x = 200,613.79

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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.