Home / 285,450.33-393,945.45-158,137.77

Finding the Fourth Proportional to 285,450.33, 393,945.45 and 158,137.77

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Solution

The fourth proportional to 285,450.33, 393,945.45 and 158,137.77 is: 218,243.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,450.33 : 393,945.45 = 158,137.77 : x
  2. Step 2: Convert to fraction form
    285,450.33/393,945.45 = 158,137.77/x
  3. Step 3: Cross multiply
    285,450.33x = 393,945.45 × 158,137.77
  4. Step 4: Simplify right side
    285,450.33x = 62,297,654,964.65
  5. Step 5: Solve for x
    x = 62,297,654,964.65/285,450.33
  6. Step 6: Final answer
    x = 218,243.42

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1.5x scale

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.