Home / 285,474.85-393,926.57-158,126.65

Finding the Fourth Proportional to 285,474.85, 393,926.57 and 158,126.65

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Solution

The fourth proportional to 285,474.85, 393,926.57 and 158,126.65 is: 218,198.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,474.85 : 393,926.57 = 158,126.65 : x
  2. Step 2: Convert to fraction form
    285,474.85/393,926.57 = 158,126.65/x
  3. Step 3: Cross multiply
    285,474.85x = 393,926.57 × 158,126.65
  4. Step 4: Simplify right side
    285,474.85x = 62,290,288,069.46
  5. Step 5: Solve for x
    x = 62,290,288,069.46/285,474.85
  6. Step 6: Final answer
    x = 218,198.86

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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.