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Finding the Fourth Proportional to 248,615.60, 372,923.40 and 154,137.20

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Solution

The fourth proportional to 248,615.60, 372,923.40 and 154,137.20 is: 231,205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,615.60 : 372,923.40 = 154,137.20 : x
  2. Step 2: Convert to fraction form
    248,615.60/372,923.40 = 154,137.20/x
  3. Step 3: Cross multiply
    248,615.60x = 372,923.40 × 154,137.20
  4. Step 4: Simplify right side
    248,615.60x = 57,481,368,690.48
  5. Step 5: Solve for x
    x = 57,481,368,690.48/248,615.60
  6. Step 6: Final answer
    x = 231,205.80

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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.