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Finding the Fourth Proportional to 381,357.35, 526,279.23 and 220,226.48

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Solution

The fourth proportional to 381,357.35, 526,279.23 and 220,226.48 is: 303,916.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,357.35 : 526,279.23 = 220,226.48 : x
  2. Step 2: Convert to fraction form
    381,357.35/526,279.23 = 220,226.48/x
  3. Step 3: Cross multiply
    381,357.35x = 526,279.23 × 220,226.48
  4. Step 4: Simplify right side
    381,357.35x = 115,900,622,320.01
  5. Step 5: Solve for x
    x = 115,900,622,320.01/381,357.35
  6. Step 6: Final answer
    x = 303,916.06

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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.