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Finding the Fourth Proportional to 248,350.78, 342,724.02 and 135,174.34

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Solution

The fourth proportional to 248,350.78, 342,724.02 and 135,174.34 is: 186,540.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,350.78 : 342,724.02 = 135,174.34 : x
  2. Step 2: Convert to fraction form
    248,350.78/342,724.02 = 135,174.34/x
  3. Step 3: Cross multiply
    248,350.78x = 342,724.02 × 135,174.34
  4. Step 4: Simplify right side
    248,350.78x = 46,327,493,205.65
  5. Step 5: Solve for x
    x = 46,327,493,205.65/248,350.78
  6. Step 6: Final answer
    x = 186,540.56

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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.