Home / 388,350.48-582,550.83-122,121.30

Finding the Fourth Proportional to 388,350.48, 582,550.83 and 122,121.30

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Solution

The fourth proportional to 388,350.48, 582,550.83 and 122,121.30 is: 183,189.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,350.48 : 582,550.83 = 122,121.30 : x
  2. Step 2: Convert to fraction form
    388,350.48/582,550.83 = 122,121.30/x
  3. Step 3: Cross multiply
    388,350.48x = 582,550.83 × 122,121.30
  4. Step 4: Simplify right side
    388,350.48x = 71,141,864,675.68
  5. Step 5: Solve for x
    x = 71,141,864,675.68/388,350.48
  6. Step 6: Final answer
    x = 183,189.85

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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.