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Finding the Fourth Proportional to 376,311.12, 519,313.32 and 206,541.60

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Solution

The fourth proportional to 376,311.12, 519,313.32 and 206,541.60 is: 285,029.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,311.12 : 519,313.32 = 206,541.60 : x
  2. Step 2: Convert to fraction form
    376,311.12/519,313.32 = 206,541.60/x
  3. Step 3: Cross multiply
    376,311.12x = 519,313.32 × 206,541.60
  4. Step 4: Simplify right side
    376,311.12x = 107,259,804,014.11
  5. Step 5: Solve for x
    x = 107,259,804,014.11/376,311.12
  6. Step 6: Final answer
    x = 285,029.59

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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.