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Finding the Fourth Proportional to 248,708.40, 372,843.90 and 148,908.30

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Solution

The fourth proportional to 248,708.40, 372,843.90 and 148,908.30 is: 223,231.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,708.40 : 372,843.90 = 148,908.30 : x
  2. Step 2: Convert to fraction form
    248,708.40/372,843.90 = 148,908.30/x
  3. Step 3: Cross multiply
    248,708.40x = 372,843.90 × 148,908.30
  4. Step 4: Simplify right side
    248,708.40x = 55,519,551,314.37
  5. Step 5: Solve for x
    x = 55,519,551,314.37/248,708.40
  6. Step 6: Final answer
    x = 223,231.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.