Home / 285,814.44-394,405.20-158,485.68

Finding the Fourth Proportional to 285,814.44, 394,405.20 and 158,485.68

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Solution

The fourth proportional to 285,814.44, 394,405.20 and 158,485.68 is: 218,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,814.44 : 394,405.20 = 158,485.68 : x
  2. Step 2: Convert to fraction form
    285,814.44/394,405.20 = 158,485.68/x
  3. Step 3: Cross multiply
    285,814.44x = 394,405.20 × 158,485.68
  4. Step 4: Simplify right side
    285,814.44x = 62,507,576,317.54
  5. Step 5: Solve for x
    x = 62,507,576,317.54/285,814.44
  6. Step 6: Final answer
    x = 218,699.85

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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.