Home / 421,928.40-582,260.22-230,940.12

Finding the Fourth Proportional to 421,928.40, 582,260.22 and 230,940.12

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Solution

The fourth proportional to 421,928.40, 582,260.22 and 230,940.12 is: 318,696.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,928.40 : 582,260.22 = 230,940.12 : x
  2. Step 2: Convert to fraction form
    421,928.40/582,260.22 = 230,940.12/x
  3. Step 3: Cross multiply
    421,928.40x = 582,260.22 × 230,940.12
  4. Step 4: Simplify right side
    421,928.40x = 134,467,245,078.03
  5. Step 5: Solve for x
    x = 134,467,245,078.03/421,928.40
  6. Step 6: Final answer
    x = 318,696.83

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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.