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Finding the Fourth Proportional to 248,414.80, 372,622.20 and 220,858.60

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Solution

The fourth proportional to 248,414.80, 372,622.20 and 220,858.60 is: 331,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,414.80 : 372,622.20 = 220,858.60 : x
  2. Step 2: Convert to fraction form
    248,414.80/372,622.20 = 220,858.60/x
  3. Step 3: Cross multiply
    248,414.80x = 372,622.20 × 220,858.60
  4. Step 4: Simplify right side
    248,414.80x = 82,296,817,420.92
  5. Step 5: Solve for x
    x = 82,296,817,420.92/248,414.80
  6. Step 6: Final answer
    x = 331,287.90

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1.5x scale

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.