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Finding the Fourth Proportional to 220,770, 331,204.36 and 80,528.62

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Solution

The fourth proportional to 220,770, 331,204.36 and 80,528.62 is: 120,810.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,770 : 331,204.36 = 80,528.62 : x
  2. Step 2: Convert to fraction form
    220,770/331,204.36 = 80,528.62/x
  3. Step 3: Cross multiply
    220,770x = 331,204.36 × 80,528.62
  4. Step 4: Simplify right side
    220,770x = 26,671,430,048.78
  5. Step 5: Solve for x
    x = 26,671,430,048.78/220,770
  6. Step 6: Final answer
    x = 120,810.93

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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.