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Finding the Fourth Proportional to 300,622.10, 450,956.84 and 100,941.71

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Solution

The fourth proportional to 300,622.10, 450,956.84 and 100,941.71 is: 151,420.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,622.10 : 450,956.84 = 100,941.71 : x
  2. Step 2: Convert to fraction form
    300,622.10/450,956.84 = 100,941.71/x
  3. Step 3: Cross multiply
    300,622.10x = 450,956.84 × 100,941.71
  4. Step 4: Simplify right side
    300,622.10x = 45,520,351,806.30
  5. Step 5: Solve for x
    x = 45,520,351,806.30/300,622.10
  6. Step 6: Final answer
    x = 151,420.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.