Home / 421,798.20-582,081.42-230,811.52

Finding the Fourth Proportional to 421,798.20, 582,081.42 and 230,811.52

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Solution

The fourth proportional to 421,798.20, 582,081.42 and 230,811.52 is: 318,519.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,798.20 : 582,081.42 = 230,811.52 : x
  2. Step 2: Convert to fraction form
    421,798.20/582,081.42 = 230,811.52/x
  3. Step 3: Cross multiply
    421,798.20x = 582,081.42 × 230,811.52
  4. Step 4: Simplify right side
    421,798.20x = 134,351,097,313.96
  5. Step 5: Solve for x
    x = 134,351,097,313.96/421,798.20
  6. Step 6: Final answer
    x = 318,519.85

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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.