Home / 248,383.28-342,760.20-135,203.60

Finding the Fourth Proportional to 248,383.28, 342,760.20 and 135,203.60

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Solution

The fourth proportional to 248,383.28, 342,760.20 and 135,203.60 is: 186,576.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,383.28 : 342,760.20 = 135,203.60 : x
  2. Step 2: Convert to fraction form
    248,383.28/342,760.20 = 135,203.60/x
  3. Step 3: Cross multiply
    248,383.28x = 342,760.20 × 135,203.60
  4. Step 4: Simplify right side
    248,383.28x = 46,342,412,976.72
  5. Step 5: Solve for x
    x = 46,342,412,976.72/248,383.28
  6. Step 6: Final answer
    x = 186,576.22

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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.