Home / 820,195.08-1,230,356.82-221,147.04

Finding the Fourth Proportional to 820,195.08, 1,230,356.82 and 221,147.04

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Solution

The fourth proportional to 820,195.08, 1,230,356.82 and 221,147.04 is: 331,737.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,195.08 : 1,230,356.82 = 221,147.04 : x
  2. Step 2: Convert to fraction form
    820,195.08/1,230,356.82 = 221,147.04/x
  3. Step 3: Cross multiply
    820,195.08x = 1,230,356.82 × 221,147.04
  4. Step 4: Simplify right side
    820,195.08x = 272,089,768,886.81
  5. Step 5: Solve for x
    x = 272,089,768,886.81/820,195.08
  6. Step 6: Final answer
    x = 331,737.87

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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.