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Finding the Fourth Proportional to 228,441.75, 315,205.88 and 147,858.09

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Solution

The fourth proportional to 228,441.75, 315,205.88 and 147,858.09 is: 204,015.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,441.75 : 315,205.88 = 147,858.09 : x
  2. Step 2: Convert to fraction form
    228,441.75/315,205.88 = 147,858.09/x
  3. Step 3: Cross multiply
    228,441.75x = 315,205.88 × 147,858.09
  4. Step 4: Simplify right side
    228,441.75x = 46,605,738,634.28
  5. Step 5: Solve for x
    x = 46,605,738,634.28/228,441.75
  6. Step 6: Final answer
    x = 204,015.85

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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.