Home / 216,635.90-324,874.23-74,440.85

Finding the Fourth Proportional to 216,635.90, 324,874.23 and 74,440.85

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Solution

The fourth proportional to 216,635.90, 324,874.23 and 74,440.85 is: 111,633.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,635.90 : 324,874.23 = 74,440.85 : x
  2. Step 2: Convert to fraction form
    216,635.90/324,874.23 = 74,440.85/x
  3. Step 3: Cross multiply
    216,635.90x = 324,874.23 × 74,440.85
  4. Step 4: Simplify right side
    216,635.90x = 24,183,912,199.92
  5. Step 5: Solve for x
    x = 24,183,912,199.92/216,635.90
  6. Step 6: Final answer
    x = 111,633.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.