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Finding the Fourth Proportional to 248,609.60, 372,914.40 and 154,131.20

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Solution

The fourth proportional to 248,609.60, 372,914.40 and 154,131.20 is: 231,196.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,609.60 : 372,914.40 = 154,131.20 : x
  2. Step 2: Convert to fraction form
    248,609.60/372,914.40 = 154,131.20/x
  3. Step 3: Cross multiply
    248,609.60x = 372,914.40 × 154,131.20
  4. Step 4: Simplify right side
    248,609.60x = 57,477,743,969.28
  5. Step 5: Solve for x
    x = 57,477,743,969.28/248,609.60
  6. Step 6: Final answer
    x = 231,196.80

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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.