Home / 485,200.66-727,911.78-148,289.26

Finding the Fourth Proportional to 485,200.66, 727,911.78 and 148,289.26

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Solution

The fourth proportional to 485,200.66, 727,911.78 and 148,289.26 is: 222,467.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,200.66 : 727,911.78 = 148,289.26 : x
  2. Step 2: Convert to fraction form
    485,200.66/727,911.78 = 148,289.26/x
  3. Step 3: Cross multiply
    485,200.66x = 727,911.78 × 148,289.26
  4. Step 4: Simplify right side
    485,200.66x = 107,941,499,201.48
  5. Step 5: Solve for x
    x = 107,941,499,201.48/485,200.66
  6. Step 6: Final answer
    x = 222,467.75

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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.