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Finding the Fourth Proportional to 377,467.63, 520,919.70 and 216,353.77

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Solution

The fourth proportional to 377,467.63, 520,919.70 and 216,353.77 is: 298,576.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,467.63 : 520,919.70 = 216,353.77 : x
  2. Step 2: Convert to fraction form
    377,467.63/520,919.70 = 216,353.77/x
  3. Step 3: Cross multiply
    377,467.63x = 520,919.70 × 216,353.77
  4. Step 4: Simplify right side
    377,467.63x = 112,702,937,275.90
  5. Step 5: Solve for x
    x = 112,702,937,275.90/377,467.63
  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.