Home / 388,318.48-582,477.22-122,102.28

Finding the Fourth Proportional to 388,318.48, 582,477.22 and 122,102.28

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Solution

The fourth proportional to 388,318.48, 582,477.22 and 122,102.28 is: 183,153.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,318.48 : 582,477.22 = 122,102.28 : x
  2. Step 2: Convert to fraction form
    388,318.48/582,477.22 = 122,102.28/x
  3. Step 3: Cross multiply
    388,318.48x = 582,477.22 × 122,102.28
  4. Step 4: Simplify right side
    388,318.48x = 71,121,796,610.06
  5. Step 5: Solve for x
    x = 71,121,796,610.06/388,318.48
  6. Step 6: Final answer
    x = 183,153.26

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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.