Home / 354,090.24-531,239.04-104,778.72

Finding the Fourth Proportional to 354,090.24, 531,239.04 and 104,778.72

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Solution

The fourth proportional to 354,090.24, 531,239.04 and 104,778.72 is: 157,198.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,090.24 : 531,239.04 = 104,778.72 : x
  2. Step 2: Convert to fraction form
    354,090.24/531,239.04 = 104,778.72/x
  3. Step 3: Cross multiply
    354,090.24x = 531,239.04 × 104,778.72
  4. Step 4: Simplify right side
    354,090.24x = 55,662,546,625.23
  5. Step 5: Solve for x
    x = 55,662,546,625.23/354,090.24
  6. Step 6: Final answer
    x = 157,198.76

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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.