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Finding the Fourth Proportional to 274,690.67, 378,191.90 and 214,183.67

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Solution

The fourth proportional to 274,690.67, 378,191.90 and 214,183.67 is: 294,886.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,690.67 : 378,191.90 = 214,183.67 : x
  2. Step 2: Convert to fraction form
    274,690.67/378,191.90 = 214,183.67/x
  3. Step 3: Cross multiply
    274,690.67x = 378,191.90 × 214,183.67
  4. Step 4: Simplify right side
    274,690.67x = 81,002,526,144.40
  5. Step 5: Solve for x
    x = 81,002,526,144.40/274,690.67
  6. Step 6: Final answer
    x = 294,886.34

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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.