Home / 285,529.36-394,029.84-158,205.28

Finding the Fourth Proportional to 285,529.36, 394,029.84 and 158,205.28

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Solution

The fourth proportional to 285,529.36, 394,029.84 and 158,205.28 is: 218,322.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,529.36 : 394,029.84 = 158,205.28 : x
  2. Step 2: Convert to fraction form
    285,529.36/394,029.84 = 158,205.28/x
  3. Step 3: Cross multiply
    285,529.36x = 394,029.84 × 158,205.28
  4. Step 4: Simplify right side
    285,529.36x = 62,337,601,165.56
  5. Step 5: Solve for x
    x = 62,337,601,165.56/285,529.36
  6. Step 6: Final answer
    x = 218,322.91

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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.