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Finding the Fourth Proportional to 215,940.62, 298,093.66 and 139,496.96

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Solution

The fourth proportional to 215,940.62, 298,093.66 and 139,496.96 is: 192,567.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,940.62 : 298,093.66 = 139,496.96 : x
  2. Step 2: Convert to fraction form
    215,940.62/298,093.66 = 139,496.96/x
  3. Step 3: Cross multiply
    215,940.62x = 298,093.66 × 139,496.96
  4. Step 4: Simplify right side
    215,940.62x = 41,583,159,365.27
  5. Step 5: Solve for x
    x = 41,583,159,365.27/215,940.62
  6. Step 6: Final answer
    x = 192,567.56

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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.