Home / 383,211.70-528,832.30-222,160.10

Finding the Fourth Proportional to 383,211.70, 528,832.30 and 222,160.10

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Solution

The fourth proportional to 383,211.70, 528,832.30 and 222,160.10 is: 306,581.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,211.70 : 528,832.30 = 222,160.10 : x
  2. Step 2: Convert to fraction form
    383,211.70/528,832.30 = 222,160.10/x
  3. Step 3: Cross multiply
    383,211.70x = 528,832.30 × 222,160.10
  4. Step 4: Simplify right side
    383,211.70x = 117,485,436,651.23
  5. Step 5: Solve for x
    x = 117,485,436,651.23/383,211.70
  6. Step 6: Final answer
    x = 306,581.03

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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.