Home / 658,200.35-987,187.64-208,821.06

Finding the Fourth Proportional to 658,200.35, 987,187.64 and 208,821.06

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Solution

The fourth proportional to 658,200.35, 987,187.64 and 208,821.06 is: 313,195.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,200.35 : 987,187.64 = 208,821.06 : x
  2. Step 2: Convert to fraction form
    658,200.35/987,187.64 = 208,821.06/x
  3. Step 3: Cross multiply
    658,200.35x = 987,187.64 × 208,821.06
  4. Step 4: Simplify right side
    658,200.35x = 206,145,568,359.59
  5. Step 5: Solve for x
    x = 206,145,568,359.59/658,200.35
  6. Step 6: Final answer
    x = 313,195.77

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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.