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Finding the Fourth Proportional to 377,441.70, 520,883.90 and 216,327.84

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Solution

The fourth proportional to 377,441.70, 520,883.90 and 216,327.84 is: 298,540.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,441.70 : 520,883.90 = 216,327.84 : x
  2. Step 2: Convert to fraction form
    377,441.70/520,883.90 = 216,327.84/x
  3. Step 3: Cross multiply
    377,441.70x = 520,883.90 × 216,327.84
  4. Step 4: Simplify right side
    377,441.70x = 112,681,687,896.14
  5. Step 5: Solve for x
    x = 112,681,687,896.14/377,441.70
  6. Step 6: Final answer
    x = 298,540.64

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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.