Home / 285,569.37-394,085.79-156,512.97

Finding the Fourth Proportional to 285,569.37, 394,085.79 and 156,512.97

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Solution

The fourth proportional to 285,569.37, 394,085.79 and 156,512.97 is: 215,987.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,569.37 : 394,085.79 = 156,512.97 : x
  2. Step 2: Convert to fraction form
    285,569.37/394,085.79 = 156,512.97/x
  3. Step 3: Cross multiply
    285,569.37x = 394,085.79 × 156,512.97
  4. Step 4: Simplify right side
    285,569.37x = 61,679,537,427.70
  5. Step 5: Solve for x
    x = 61,679,537,427.70/285,569.37
  6. Step 6: Final answer
    x = 215,987.93

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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.