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Finding the Fourth Proportional to 377,435.62, 520,890.74 and 216,330.27

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Solution

The fourth proportional to 377,435.62, 520,890.74 and 216,330.27 is: 298,552.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,435.62 : 520,890.74 = 216,330.27 : x
  2. Step 2: Convert to fraction form
    377,435.62/520,890.74 = 216,330.27/x
  3. Step 3: Cross multiply
    377,435.62x = 520,890.74 × 216,330.27
  4. Step 4: Simplify right side
    377,435.62x = 112,684,434,424.70
  5. Step 5: Solve for x
    x = 112,684,434,424.70/377,435.62
  6. Step 6: Final answer
    x = 298,552.73

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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.