Home / 381,074.55-525,844.98-219,981.50

Finding the Fourth Proportional to 381,074.55, 525,844.98 and 219,981.50

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Solution

The fourth proportional to 381,074.55, 525,844.98 and 219,981.50 is: 303,552.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,074.55 : 525,844.98 = 219,981.50 : x
  2. Step 2: Convert to fraction form
    381,074.55/525,844.98 = 219,981.50/x
  3. Step 3: Cross multiply
    381,074.55x = 525,844.98 × 219,981.50
  4. Step 4: Simplify right side
    381,074.55x = 115,676,167,467.87
  5. Step 5: Solve for x
    x = 115,676,167,467.87/381,074.55
  6. Step 6: Final answer
    x = 303,552.59

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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.