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Finding the Fourth Proportional to 339,016.20, 507,941.10 and 220,626.60

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Solution

The fourth proportional to 339,016.20, 507,941.10 and 220,626.60 is: 330,560.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,016.20 : 507,941.10 = 220,626.60 : x
  2. Step 2: Convert to fraction form
    339,016.20/507,941.10 = 220,626.60/x
  3. Step 3: Cross multiply
    339,016.20x = 507,941.10 × 220,626.60
  4. Step 4: Simplify right side
    339,016.20x = 112,065,317,893.26
  5. Step 5: Solve for x
    x = 112,065,317,893.26/339,016.20
  6. Step 6: Final answer
    x = 330,560.36

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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.