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Finding the Fourth Proportional to 248,076.20, 372,114.30 and 148,543.40

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Solution

The fourth proportional to 248,076.20, 372,114.30 and 148,543.40 is: 222,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,076.20 : 372,114.30 = 148,543.40 : x
  2. Step 2: Convert to fraction form
    248,076.20/372,114.30 = 148,543.40/x
  3. Step 3: Cross multiply
    248,076.20x = 372,114.30 × 148,543.40
  4. Step 4: Simplify right side
    248,076.20x = 55,275,123,310.62
  5. Step 5: Solve for x
    x = 55,275,123,310.62/248,076.20
  6. Step 6: Final answer
    x = 222,815.10

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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.