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Finding the Fourth Proportional to 378,163.20, 567,244.80 and 336,828.90

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Solution

The fourth proportional to 378,163.20, 567,244.80 and 336,828.90 is: 505,243.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,163.20 : 567,244.80 = 336,828.90 : x
  2. Step 2: Convert to fraction form
    378,163.20/567,244.80 = 336,828.90/x
  3. Step 3: Cross multiply
    378,163.20x = 567,244.80 × 336,828.90
  4. Step 4: Simplify right side
    378,163.20x = 191,064,442,014.72
  5. Step 5: Solve for x
    x = 191,064,442,014.72/378,163.20
  6. Step 6: Final answer
    x = 505,243.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.