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Finding the Fourth Proportional to 248,009.60, 372,100.80 and 107,868.80

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Solution

The fourth proportional to 248,009.60, 372,100.80 and 107,868.80 is: 161,840.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,009.60 : 372,100.80 = 107,868.80 : x
  2. Step 2: Convert to fraction form
    248,009.60/372,100.80 = 107,868.80/x
  3. Step 3: Cross multiply
    248,009.60x = 372,100.80 × 107,868.80
  4. Step 4: Simplify right side
    248,009.60x = 40,138,066,775.04
  5. Step 5: Solve for x
    x = 40,138,066,775.04/248,009.60
  6. Step 6: Final answer
    x = 161,840.78

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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.