Home / 421,942.23-582,280.92-230,967.72

Finding the Fourth Proportional to 421,942.23, 582,280.92 and 230,967.72

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Solution

The fourth proportional to 421,942.23, 582,280.92 and 230,967.72 is: 318,735.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,942.23 : 582,280.92 = 230,967.72 : x
  2. Step 2: Convert to fraction form
    421,942.23/582,280.92 = 230,967.72/x
  3. Step 3: Cross multiply
    421,942.23x = 582,280.92 × 230,967.72
  4. Step 4: Simplify right side
    421,942.23x = 134,488,096,491.90
  5. Step 5: Solve for x
    x = 134,488,096,491.90/421,942.23
  6. Step 6: Final answer
    x = 318,735.81

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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.