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Finding the Fourth Proportional to 248,758.56, 343,286.94 and 141,328.78

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Solution

The fourth proportional to 248,758.56, 343,286.94 and 141,328.78 is: 195,033.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,758.56 : 343,286.94 = 141,328.78 : x
  2. Step 2: Convert to fraction form
    248,758.56/343,286.94 = 141,328.78/x
  3. Step 3: Cross multiply
    248,758.56x = 343,286.94 × 141,328.78
  4. Step 4: Simplify right side
    248,758.56x = 48,516,324,420.13
  5. Step 5: Solve for x
    x = 48,516,324,420.13/248,758.56
  6. Step 6: Final answer
    x = 195,033.79

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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.