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Finding the Fourth Proportional to 377,436.46, 520,874.82 and 216,322.42

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Solution

The fourth proportional to 377,436.46, 520,874.82 and 216,322.42 is: 298,532.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,436.46 : 520,874.82 = 216,322.42 : x
  2. Step 2: Convert to fraction form
    377,436.46/520,874.82 = 216,322.42/x
  3. Step 3: Cross multiply
    377,436.46x = 520,874.82 × 216,322.42
  4. Step 4: Simplify right side
    377,436.46x = 112,676,901,579.46
  5. Step 5: Solve for x
    x = 112,676,901,579.46/377,436.46
  6. Step 6: Final answer
    x = 298,532.11

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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.