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Finding the Fourth Proportional to 538,997.60, 808,431.60 and 223,421.60

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Solution

The fourth proportional to 538,997.60, 808,431.60 and 223,421.60 is: 335,105.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,997.60 : 808,431.60 = 223,421.60 : x
  2. Step 2: Convert to fraction form
    538,997.60/808,431.60 = 223,421.60/x
  3. Step 3: Cross multiply
    538,997.60x = 808,431.60 × 223,421.60
  4. Step 4: Simplify right side
    538,997.60x = 180,621,081,562.56
  5. Step 5: Solve for x
    x = 180,621,081,562.56/538,997.60
  6. Step 6: Final answer
    x = 335,105.54

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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.