Home / 285,854.40-394,503.30-158,571

Finding the Fourth Proportional to 285,854.40, 394,503.30 and 158,571

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Solution

The fourth proportional to 285,854.40, 394,503.30 and 158,571 is: 218,841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,854.40 : 394,503.30 = 158,571 : x
  2. Step 2: Convert to fraction form
    285,854.40/394,503.30 = 158,571/x
  3. Step 3: Cross multiply
    285,854.40x = 394,503.30 × 158,571
  4. Step 4: Simplify right side
    285,854.40x = 62,556,782,784.30
  5. Step 5: Solve for x
    x = 62,556,782,784.30/285,854.40
  6. Step 6: Final answer
    x = 218,841.42

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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.