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Finding the Fourth Proportional to 381,119.56, 525,907.06 and 220,026.60

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Solution

The fourth proportional to 381,119.56, 525,907.06 and 220,026.60 is: 303,614.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,119.56 : 525,907.06 = 220,026.60 : x
  2. Step 2: Convert to fraction form
    381,119.56/525,907.06 = 220,026.60/x
  3. Step 3: Cross multiply
    381,119.56x = 525,907.06 × 220,026.60
  4. Step 4: Simplify right side
    381,119.56x = 115,713,542,327.80
  5. Step 5: Solve for x
    x = 115,713,542,327.80/381,119.56
  6. Step 6: Final answer
    x = 303,614.81

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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.