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Finding the Fourth Proportional to 285,855.66, 394,467.30 and 158,528.52

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Solution

The fourth proportional to 285,855.66, 394,467.30 and 158,528.52 is: 218,761.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,855.66 : 394,467.30 = 158,528.52 : x
  2. Step 2: Convert to fraction form
    285,855.66/394,467.30 = 158,528.52/x
  3. Step 3: Cross multiply
    285,855.66x = 394,467.30 × 158,528.52
  4. Step 4: Simplify right side
    285,855.66x = 62,534,317,257.40
  5. Step 5: Solve for x
    x = 62,534,317,257.40/285,855.66
  6. Step 6: Final answer
    x = 218,761.86

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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.