Home / 213,015.24-318,976.38-206,708.58

Finding the Fourth Proportional to 213,015.24, 318,976.38 and 206,708.58

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Solution

The fourth proportional to 213,015.24, 318,976.38 and 206,708.58 is: 309,532.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,015.24 : 318,976.38 = 206,708.58 : x
  2. Step 2: Convert to fraction form
    213,015.24/318,976.38 = 206,708.58/x
  3. Step 3: Cross multiply
    213,015.24x = 318,976.38 × 206,708.58
  4. Step 4: Simplify right side
    213,015.24x = 65,935,154,563.34
  5. Step 5: Solve for x
    x = 65,935,154,563.34/213,015.24
  6. Step 6: Final answer
    x = 309,532.57

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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.