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Finding the Fourth Proportional to 366,956.64, 550,435.56 and 100,720.80

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Solution

The fourth proportional to 366,956.64, 550,435.56 and 100,720.80 is: 151,081.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,956.64 : 550,435.56 = 100,720.80 : x
  2. Step 2: Convert to fraction form
    366,956.64/550,435.56 = 100,720.80/x
  3. Step 3: Cross multiply
    366,956.64x = 550,435.56 × 100,720.80
  4. Step 4: Simplify right side
    366,956.64x = 55,440,309,951.65
  5. Step 5: Solve for x
    x = 55,440,309,951.65/366,956.64
  6. Step 6: Final answer
    x = 151,081.36

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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.