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Finding the Fourth Proportional to 168,339.60, 252,509.40 and 43,680.60

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Solution

The fourth proportional to 168,339.60, 252,509.40 and 43,680.60 is: 65,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,339.60 : 252,509.40 = 43,680.60 : x
  2. Step 2: Convert to fraction form
    168,339.60/252,509.40 = 43,680.60/x
  3. Step 3: Cross multiply
    168,339.60x = 252,509.40 × 43,680.60
  4. Step 4: Simplify right side
    168,339.60x = 11,029,762,097.64
  5. Step 5: Solve for x
    x = 11,029,762,097.64/168,339.60
  6. Step 6: Final answer
    x = 65,520.90

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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.