Home / 212,927.14-318,845.28-206,620.48

Finding the Fourth Proportional to 212,927.14, 318,845.28 and 206,620.48

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Solution

The fourth proportional to 212,927.14, 318,845.28 and 206,620.48 is: 309,401.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,927.14 : 318,845.28 = 206,620.48 : x
  2. Step 2: Convert to fraction form
    212,927.14/318,845.28 = 206,620.48/x
  3. Step 3: Cross multiply
    212,927.14x = 318,845.28 × 206,620.48
  4. Step 4: Simplify right side
    212,927.14x = 65,879,964,799.33
  5. Step 5: Solve for x
    x = 65,879,964,799.33/212,927.14
  6. Step 6: Final answer
    x = 309,401.45

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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.