Home / 226,760.40-340,270.20-86,619.60

Finding the Fourth Proportional to 226,760.40, 340,270.20 and 86,619.60

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Solution

The fourth proportional to 226,760.40, 340,270.20 and 86,619.60 is: 129,978.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,760.40 : 340,270.20 = 86,619.60 : x
  2. Step 2: Convert to fraction form
    226,760.40/340,270.20 = 86,619.60/x
  3. Step 3: Cross multiply
    226,760.40x = 340,270.20 × 86,619.60
  4. Step 4: Simplify right side
    226,760.40x = 29,474,068,615.92
  5. Step 5: Solve for x
    x = 29,474,068,615.92/226,760.40
  6. Step 6: Final answer
    x = 129,978.91

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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.