Home / 275,556.27-380,241.40-154,669.85

Finding the Fourth Proportional to 275,556.27, 380,241.40 and 154,669.85

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Solution

The fourth proportional to 275,556.27, 380,241.40 and 154,669.85 is: 213,429.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,556.27 : 380,241.40 = 154,669.85 : x
  2. Step 2: Convert to fraction form
    275,556.27/380,241.40 = 154,669.85/x
  3. Step 3: Cross multiply
    275,556.27x = 380,241.40 × 154,669.85
  4. Step 4: Simplify right side
    275,556.27x = 58,811,880,301.79
  5. Step 5: Solve for x
    x = 58,811,880,301.79/275,556.27
  6. Step 6: Final answer
    x = 213,429.66

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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.