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Finding the Fourth Proportional to 377,467.62, 520,919.69 and 216,353.76

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Solution

The fourth proportional to 377,467.62, 520,919.69 and 216,353.76 is: 298,576.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,467.62 : 520,919.69 = 216,353.76 : x
  2. Step 2: Convert to fraction form
    377,467.62/520,919.69 = 216,353.76/x
  3. Step 3: Cross multiply
    377,467.62x = 520,919.69 × 216,353.76
  4. Step 4: Simplify right side
    377,467.62x = 112,702,933,589.53
  5. Step 5: Solve for x
    x = 112,702,933,589.53/377,467.62
  6. Step 6: Final answer
    x = 298,576.43

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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.