Home / 381,057.20-525,849.72-211,292.72

Finding the Fourth Proportional to 381,057.20, 525,849.72 and 211,292.72

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Solution

The fourth proportional to 381,057.20, 525,849.72 and 211,292.72 is: 291,578.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,057.20 : 525,849.72 = 211,292.72 : x
  2. Step 2: Convert to fraction form
    381,057.20/525,849.72 = 211,292.72/x
  3. Step 3: Cross multiply
    381,057.20x = 525,849.72 × 211,292.72
  4. Step 4: Simplify right side
    381,057.20x = 111,108,217,650.04
  5. Step 5: Solve for x
    x = 111,108,217,650.04/381,057.20
  6. Step 6: Final answer
    x = 291,578.84

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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.