Home / 230,900.22-318,558.02-135,388.40

Finding the Fourth Proportional to 230,900.22, 318,558.02 and 135,388.40

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Solution

The fourth proportional to 230,900.22, 318,558.02 and 135,388.40 is: 186,786.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,900.22 : 318,558.02 = 135,388.40 : x
  2. Step 2: Convert to fraction form
    230,900.22/318,558.02 = 135,388.40/x
  3. Step 3: Cross multiply
    230,900.22x = 318,558.02 × 135,388.40
  4. Step 4: Simplify right side
    230,900.22x = 43,129,058,365.24
  5. Step 5: Solve for x
    x = 43,129,058,365.24/230,900.22
  6. Step 6: Final answer
    x = 186,786.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.