Home / 388,110.42-582,190.20-121,881.42

Finding the Fourth Proportional to 388,110.42, 582,190.20 and 121,881.42

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Solution

The fourth proportional to 388,110.42, 582,190.20 and 121,881.42 is: 182,829.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,110.42 : 582,190.20 = 121,881.42 : x
  2. Step 2: Convert to fraction form
    388,110.42/582,190.20 = 121,881.42/x
  3. Step 3: Cross multiply
    388,110.42x = 582,190.20 × 121,881.42
  4. Step 4: Simplify right side
    388,110.42x = 70,958,168,286.08
  5. Step 5: Solve for x
    x = 70,958,168,286.08/388,110.42
  6. Step 6: Final answer
    x = 182,829.85

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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.