Home / 304,556.45-420,148.26-197,161.07

Finding the Fourth Proportional to 304,556.45, 420,148.26 and 197,161.07

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Solution

The fourth proportional to 304,556.45, 420,148.26 and 197,161.07 is: 271,991.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,556.45 : 420,148.26 = 197,161.07 : x
  2. Step 2: Convert to fraction form
    304,556.45/420,148.26 = 197,161.07/x
  3. Step 3: Cross multiply
    304,556.45x = 420,148.26 × 197,161.07
  4. Step 4: Simplify right side
    304,556.45x = 82,836,878,399.50
  5. Step 5: Solve for x
    x = 82,836,878,399.50/304,556.45
  6. Step 6: Final answer
    x = 271,991.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.