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Finding the Fourth Proportional to 377,367.84, 520,771.92 and 216,219.60

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Solution

The fourth proportional to 377,367.84, 520,771.92 and 216,219.60 is: 298,385.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,367.84 : 520,771.92 = 216,219.60 : x
  2. Step 2: Convert to fraction form
    377,367.84/520,771.92 = 216,219.60/x
  3. Step 3: Cross multiply
    377,367.84x = 520,771.92 × 216,219.60
  4. Step 4: Simplify right side
    377,367.84x = 112,601,096,233.63
  5. Step 5: Solve for x
    x = 112,601,096,233.63/377,367.84
  6. Step 6: Final answer
    x = 298,385.51

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1.5x scale

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.