Home / 208,983.80-313,610.10-115,556.60

Finding the Fourth Proportional to 208,983.80, 313,610.10 and 115,556.60

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Solution

The fourth proportional to 208,983.80, 313,610.10 and 115,556.60 is: 173,409.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,983.80 : 313,610.10 = 115,556.60 : x
  2. Step 2: Convert to fraction form
    208,983.80/313,610.10 = 115,556.60/x
  3. Step 3: Cross multiply
    208,983.80x = 313,610.10 × 115,556.60
  4. Step 4: Simplify right side
    208,983.80x = 36,239,716,881.66
  5. Step 5: Solve for x
    x = 36,239,716,881.66/208,983.80
  6. Step 6: Final answer
    x = 173,409.22

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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.