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Finding the Fourth Proportional to 381,073.57, 525,843.63 and 219,980.52

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Solution

The fourth proportional to 381,073.57, 525,843.63 and 219,980.52 is: 303,551.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,073.57 : 525,843.63 = 219,980.52 : x
  2. Step 2: Convert to fraction form
    381,073.57/525,843.63 = 219,980.52/x
  3. Step 3: Cross multiply
    381,073.57x = 525,843.63 × 219,980.52
  4. Step 4: Simplify right side
    381,073.57x = 115,675,355,166.09
  5. Step 5: Solve for x
    x = 115,675,355,166.09/381,073.57
  6. Step 6: Final answer
    x = 303,551.24

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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.