Home / 358,220.75-494,415.27-205,361.55

Finding the Fourth Proportional to 358,220.75, 494,415.27 and 205,361.55

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Solution

The fourth proportional to 358,220.75, 494,415.27 and 205,361.55 is: 283,439.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,220.75 : 494,415.27 = 205,361.55 : x
  2. Step 2: Convert to fraction form
    358,220.75/494,415.27 = 205,361.55/x
  3. Step 3: Cross multiply
    358,220.75x = 494,415.27 × 205,361.55
  4. Step 4: Simplify right side
    358,220.75x = 101,533,886,190.87
  5. Step 5: Solve for x
    x = 101,533,886,190.87/358,220.75
  6. Step 6: Final answer
    x = 283,439.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.