Home / 505,974.95-759,172.80-221,519.05

Finding the Fourth Proportional to 505,974.95, 759,172.80 and 221,519.05

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Solution

The fourth proportional to 505,974.95, 759,172.80 and 221,519.05 is: 332,370.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,974.95 : 759,172.80 = 221,519.05 : x
  2. Step 2: Convert to fraction form
    505,974.95/759,172.80 = 221,519.05/x
  3. Step 3: Cross multiply
    505,974.95x = 759,172.80 × 221,519.05
  4. Step 4: Simplify right side
    505,974.95x = 168,171,240,644.95
  5. Step 5: Solve for x
    x = 168,171,240,644.95/505,974.95
  6. Step 6: Final answer
    x = 332,370.68

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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.