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Finding the Fourth Proportional to 377,299.56, 520,711.58 and 216,175.98

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Solution

The fourth proportional to 377,299.56, 520,711.58 and 216,175.98 is: 298,344.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,299.56 : 520,711.58 = 216,175.98 : x
  2. Step 2: Convert to fraction form
    377,299.56/520,711.58 = 216,175.98/x
  3. Step 3: Cross multiply
    377,299.56x = 520,711.58 × 216,175.98
  4. Step 4: Simplify right side
    377,299.56x = 112,565,336,644.29
  5. Step 5: Solve for x
    x = 112,565,336,644.29/377,299.56
  6. Step 6: Final answer
    x = 298,344.73

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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.