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Finding the Fourth Proportional to 285,545.54, 394,046.97 and 158,220.02

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Solution

The fourth proportional to 285,545.54, 394,046.97 and 158,220.02 is: 218,340.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,545.54 : 394,046.97 = 158,220.02 : x
  2. Step 2: Convert to fraction form
    285,545.54/394,046.97 = 158,220.02/x
  3. Step 3: Cross multiply
    285,545.54x = 394,046.97 × 158,220.02
  4. Step 4: Simplify right side
    285,545.54x = 62,346,119,474.34
  5. Step 5: Solve for x
    x = 62,346,119,474.34/285,545.54
  6. Step 6: Final answer
    x = 218,340.37

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1.5x scale

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.