Home / 381,077.61-525,849.20-219,984.56

Finding the Fourth Proportional to 381,077.61, 525,849.20 and 219,984.56

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Solution

The fourth proportional to 381,077.61, 525,849.20 and 219,984.56 is: 303,556.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,077.61 : 525,849.20 = 219,984.56 : x
  2. Step 2: Convert to fraction form
    381,077.61/525,849.20 = 219,984.56/x
  3. Step 3: Cross multiply
    381,077.61x = 525,849.20 × 219,984.56
  4. Step 4: Simplify right side
    381,077.61x = 115,678,704,888.35
  5. Step 5: Solve for x
    x = 115,678,704,888.35/381,077.61
  6. Step 6: Final answer
    x = 303,556.81

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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.