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Finding the Fourth Proportional to 285,893.66, 394,580.49 and 158,610.26

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Solution

The fourth proportional to 285,893.66, 394,580.49 and 158,610.26 is: 218,908.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,893.66 : 394,580.49 = 158,610.26 : x
  2. Step 2: Convert to fraction form
    285,893.66/394,580.49 = 158,610.26/x
  3. Step 3: Cross multiply
    285,893.66x = 394,580.49 × 158,610.26
  4. Step 4: Simplify right side
    285,893.66x = 62,584,514,109.83
  5. Step 5: Solve for x
    x = 62,584,514,109.83/285,893.66
  6. Step 6: Final answer
    x = 218,908.37

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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.