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Finding the Fourth Proportional to 230,760.56, 318,453.72 and 135,336.08

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Solution

The fourth proportional to 230,760.56, 318,453.72 and 135,336.08 is: 186,766.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,760.56 : 318,453.72 = 135,336.08 : x
  2. Step 2: Convert to fraction form
    230,760.56/318,453.72 = 135,336.08/x
  3. Step 3: Cross multiply
    230,760.56x = 318,453.72 × 135,336.08
  4. Step 4: Simplify right side
    230,760.56x = 43,098,278,126.22
  5. Step 5: Solve for x
    x = 43,098,278,126.22/230,760.56
  6. Step 6: Final answer
    x = 186,766.22

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1.5x scale

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.