Home / 485,200.04-727,910.78-148,288.59

Finding the Fourth Proportional to 485,200.04, 727,910.78 and 148,288.59

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Solution

The fourth proportional to 485,200.04, 727,910.78 and 148,288.59 is: 222,466.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,200.04 : 727,910.78 = 148,288.59 : x
  2. Step 2: Convert to fraction form
    485,200.04/727,910.78 = 148,288.59/x
  3. Step 3: Cross multiply
    485,200.04x = 727,910.78 × 148,288.59
  4. Step 4: Simplify right side
    485,200.04x = 107,940,862,470.56
  5. Step 5: Solve for x
    x = 107,940,862,470.56/485,200.04
  6. Step 6: Final answer
    x = 222,466.72

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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.