Home / 388,513.67-582,844.32-135,865.97

Finding the Fourth Proportional to 388,513.67, 582,844.32 and 135,865.97

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Solution

The fourth proportional to 388,513.67, 582,844.32 and 135,865.97 is: 203,824.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,513.67 : 582,844.32 = 135,865.97 : x
  2. Step 2: Convert to fraction form
    388,513.67/582,844.32 = 135,865.97/x
  3. Step 3: Cross multiply
    388,513.67x = 582,844.32 × 135,865.97
  4. Step 4: Simplify right side
    388,513.67x = 79,188,708,895.79
  5. Step 5: Solve for x
    x = 79,188,708,895.79/388,513.67
  6. Step 6: Final answer
    x = 203,824.77

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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.