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Finding the Fourth Proportional to 230,508.56, 345,918.36 and 90,249.68

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Solution

The fourth proportional to 230,508.56, 345,918.36 and 90,249.68 is: 135,435.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,508.56 : 345,918.36 = 90,249.68 : x
  2. Step 2: Convert to fraction form
    230,508.56/345,918.36 = 90,249.68/x
  3. Step 3: Cross multiply
    230,508.56x = 345,918.36 × 90,249.68
  4. Step 4: Simplify right side
    230,508.56x = 31,219,021,296.12
  5. Step 5: Solve for x
    x = 31,219,021,296.12/230,508.56
  6. Step 6: Final answer
    x = 135,435.41

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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.