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Finding the Fourth Proportional to 481,457.10, 721,857.60 and 228,858.60

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Solution

The fourth proportional to 481,457.10, 721,857.60 and 228,858.60 is: 343,131.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,457.10 : 721,857.60 = 228,858.60 : x
  2. Step 2: Convert to fraction form
    481,457.10/721,857.60 = 228,858.60/x
  3. Step 3: Cross multiply
    481,457.10x = 721,857.60 × 228,858.60
  4. Step 4: Simplify right side
    481,457.10x = 165,203,319,735.36
  5. Step 5: Solve for x
    x = 165,203,319,735.36/481,457.10
  6. Step 6: Final answer
    x = 343,131.96

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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.