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Finding the Fourth Proportional to 279,784.44, 419,325.53 and 220,385.52

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Solution

The fourth proportional to 279,784.44, 419,325.53 and 220,385.52 is: 330,301.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,784.44 : 419,325.53 = 220,385.52 : x
  2. Step 2: Convert to fraction form
    279,784.44/419,325.53 = 220,385.52/x
  3. Step 3: Cross multiply
    279,784.44x = 419,325.53 × 220,385.52
  4. Step 4: Simplify right side
    279,784.44x = 92,413,273,876.40
  5. Step 5: Solve for x
    x = 92,413,273,876.40/279,784.44
  6. Step 6: Final answer
    x = 330,301.69

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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.