Home / 820,230.45-1,230,409.94-221,182.53

Finding the Fourth Proportional to 820,230.45, 1,230,409.94 and 221,182.53

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Solution

The fourth proportional to 820,230.45, 1,230,409.94 and 221,182.53 is: 331,791.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,230.45 : 1,230,409.94 = 221,182.53 : x
  2. Step 2: Convert to fraction form
    820,230.45/1,230,409.94 = 221,182.53/x
  3. Step 3: Cross multiply
    820,230.45x = 1,230,409.94 × 221,182.53
  4. Step 4: Simplify right side
    820,230.45x = 272,145,183,466.35
  5. Step 5: Solve for x
    x = 272,145,183,466.35/820,230.45
  6. Step 6: Final answer
    x = 331,791.12

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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.