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Finding the Fourth Proportional to 219,270.42, 328,939.91 and 92,910.96

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Solution

The fourth proportional to 219,270.42, 328,939.91 and 92,910.96 is: 139,380.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,270.42 : 328,939.91 = 92,910.96 : x
  2. Step 2: Convert to fraction form
    219,270.42/328,939.91 = 92,910.96/x
  3. Step 3: Cross multiply
    219,270.42x = 328,939.91 × 92,910.96
  4. Step 4: Simplify right side
    219,270.42x = 30,562,122,820.41
  5. Step 5: Solve for x
    x = 30,562,122,820.41/219,270.42
  6. Step 6: Final answer
    x = 139,380.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.