Home / 209,216.31-313,806.66-82,822.19

Finding the Fourth Proportional to 209,216.31, 313,806.66 and 82,822.19

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Solution

The fourth proportional to 209,216.31, 313,806.66 and 82,822.19 is: 124,226.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,216.31 : 313,806.66 = 82,822.19 : x
  2. Step 2: Convert to fraction form
    209,216.31/313,806.66 = 82,822.19/x
  3. Step 3: Cross multiply
    209,216.31x = 313,806.66 × 82,822.19
  4. Step 4: Simplify right side
    209,216.31x = 25,990,154,817.79
  5. Step 5: Solve for x
    x = 25,990,154,817.79/209,216.31
  6. Step 6: Final answer
    x = 124,226.24

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1.5x scale

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.