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Finding the Fourth Proportional to 377,758.80, 566,638.20 and 218,107.80

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Solution

The fourth proportional to 377,758.80, 566,638.20 and 218,107.80 is: 327,161.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,758.80 : 566,638.20 = 218,107.80 : x
  2. Step 2: Convert to fraction form
    377,758.80/566,638.20 = 218,107.80/x
  3. Step 3: Cross multiply
    377,758.80x = 566,638.20 × 218,107.80
  4. Step 4: Simplify right side
    377,758.80x = 123,588,211,197.96
  5. Step 5: Solve for x
    x = 123,588,211,197.96/377,758.80
  6. Step 6: Final answer
    x = 327,161.70

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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.