Home / 388,355.36-582,558.17-122,126.18

Finding the Fourth Proportional to 388,355.36, 582,558.17 and 122,126.18

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Solution

The fourth proportional to 388,355.36, 582,558.17 and 122,126.18 is: 183,197.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,355.36 : 582,558.17 = 122,126.18 : x
  2. Step 2: Convert to fraction form
    388,355.36/582,558.17 = 122,126.18/x
  3. Step 3: Cross multiply
    388,355.36x = 582,558.17 × 122,126.18
  4. Step 4: Simplify right side
    388,355.36x = 71,145,600,406.47
  5. Step 5: Solve for x
    x = 71,145,600,406.47/388,355.36
  6. Step 6: Final answer
    x = 183,197.17

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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.