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Finding the Fourth Proportional to 381,246.36, 526,064.22 and 220,075.80

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Solution

The fourth proportional to 381,246.36, 526,064.22 and 220,075.80 is: 303,672.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,246.36 : 526,064.22 = 220,075.80 : x
  2. Step 2: Convert to fraction form
    381,246.36/526,064.22 = 220,075.80/x
  3. Step 3: Cross multiply
    381,246.36x = 526,064.22 × 220,075.80
  4. Step 4: Simplify right side
    381,246.36x = 115,774,004,067.88
  5. Step 5: Solve for x
    x = 115,774,004,067.88/381,246.36
  6. Step 6: Final answer
    x = 303,672.42

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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.