Home / 285,561.24-394,077.12-158,239.56

Finding the Fourth Proportional to 285,561.24, 394,077.12 and 158,239.56

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Solution

The fourth proportional to 285,561.24, 394,077.12 and 158,239.56 is: 218,372.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,561.24 : 394,077.12 = 158,239.56 : x
  2. Step 2: Convert to fraction form
    285,561.24/394,077.12 = 158,239.56/x
  3. Step 3: Cross multiply
    285,561.24x = 394,077.12 × 158,239.56
  4. Step 4: Simplify right side
    285,561.24x = 62,358,590,074.87
  5. Step 5: Solve for x
    x = 62,358,590,074.87/285,561.24
  6. Step 6: Final answer
    x = 218,372.04

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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.