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Finding the Fourth Proportional to 490,910.58, 736,365.87 and 135,924.57

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Solution

The fourth proportional to 490,910.58, 736,365.87 and 135,924.57 is: 203,886.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,910.58 : 736,365.87 = 135,924.57 : x
  2. Step 2: Convert to fraction form
    490,910.58/736,365.87 = 135,924.57/x
  3. Step 3: Cross multiply
    490,910.58x = 736,365.87 × 135,924.57
  4. Step 4: Simplify right side
    490,910.58x = 100,090,214,242.43
  5. Step 5: Solve for x
    x = 100,090,214,242.43/490,910.58
  6. Step 6: Final answer
    x = 203,886.86

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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.