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Finding the Fourth Proportional to 300,956.85, 415,373.21 and 228,599.25

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Solution

The fourth proportional to 300,956.85, 415,373.21 and 228,599.25 is: 315,507.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,956.85 : 415,373.21 = 228,599.25 : x
  2. Step 2: Convert to fraction form
    300,956.85/415,373.21 = 228,599.25/x
  3. Step 3: Cross multiply
    300,956.85x = 415,373.21 × 228,599.25
  4. Step 4: Simplify right side
    300,956.85x = 94,954,004,847.59
  5. Step 5: Solve for x
    x = 94,954,004,847.59/300,956.85
  6. Step 6: Final answer
    x = 315,507.04

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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.