Home / 216,566.68-324,631.94-90,276.85

Finding the Fourth Proportional to 216,566.68, 324,631.94 and 90,276.85

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Solution

The fourth proportional to 216,566.68, 324,631.94 and 90,276.85 is: 135,324.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,566.68 : 324,631.94 = 90,276.85 : x
  2. Step 2: Convert to fraction form
    216,566.68/324,631.94 = 90,276.85/x
  3. Step 3: Cross multiply
    216,566.68x = 324,631.94 × 90,276.85
  4. Step 4: Simplify right side
    216,566.68x = 29,306,746,878.05
  5. Step 5: Solve for x
    x = 29,306,746,878.05/216,566.68
  6. Step 6: Final answer
    x = 135,324.36

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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.