Home / 212,198.55-318,297.93-54,427.02

Finding the Fourth Proportional to 212,198.55, 318,297.93 and 54,427.02

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Solution

The fourth proportional to 212,198.55, 318,297.93 and 54,427.02 is: 81,640.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,198.55 : 318,297.93 = 54,427.02 : x
  2. Step 2: Convert to fraction form
    212,198.55/318,297.93 = 54,427.02/x
  3. Step 3: Cross multiply
    212,198.55x = 318,297.93 × 54,427.02
  4. Step 4: Simplify right side
    212,198.55x = 17,324,007,802.07
  5. Step 5: Solve for x
    x = 17,324,007,802.07/212,198.55
  6. Step 6: Final answer
    x = 81,640.56

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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.