Home / 275,556.07-380,241.12-154,669.65

Finding the Fourth Proportional to 275,556.07, 380,241.12 and 154,669.65

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Solution

The fourth proportional to 275,556.07, 380,241.12 and 154,669.65 is: 213,429.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,556.07 : 380,241.12 = 154,669.65 : x
  2. Step 2: Convert to fraction form
    275,556.07/380,241.12 = 154,669.65/x
  3. Step 3: Cross multiply
    275,556.07x = 380,241.12 × 154,669.65
  4. Step 4: Simplify right side
    275,556.07x = 58,811,760,100.12
  5. Step 5: Solve for x
    x = 58,811,760,100.12/275,556.07
  6. Step 6: Final answer
    x = 213,429.38

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1.5x scale

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.