Home / 285,849.11-394,461.85-158,536.55

Finding the Fourth Proportional to 285,849.11, 394,461.85 and 158,536.55

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Solution

The fourth proportional to 285,849.11, 394,461.85 and 158,536.55 is: 218,774.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,849.11 : 394,461.85 = 158,536.55 : x
  2. Step 2: Convert to fraction form
    285,849.11/394,461.85 = 158,536.55/x
  3. Step 3: Cross multiply
    285,849.11x = 394,461.85 × 158,536.55
  4. Step 4: Simplify right side
    285,849.11x = 62,536,620,805.62
  5. Step 5: Solve for x
    x = 62,536,620,805.62/285,849.11
  6. Step 6: Final answer
    x = 218,774.94

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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.