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Finding the Fourth Proportional to 381,073.58, 525,843.64 and 219,980.53

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Solution

The fourth proportional to 381,073.58, 525,843.64 and 219,980.53 is: 303,551.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,073.58 : 525,843.64 = 219,980.53 : x
  2. Step 2: Convert to fraction form
    381,073.58/525,843.64 = 219,980.53/x
  3. Step 3: Cross multiply
    381,073.58x = 525,843.64 × 219,980.53
  4. Step 4: Simplify right side
    381,073.58x = 115,675,362,349.35
  5. Step 5: Solve for x
    x = 115,675,362,349.35/381,073.58
  6. Step 6: Final answer
    x = 303,551.25

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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.