Home / 278,933.23-385,113.22-214,287.32

Finding the Fourth Proportional to 278,933.23, 385,113.22 and 214,287.32

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Solution

The fourth proportional to 278,933.23, 385,113.22 and 214,287.32 is: 295,858.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,933.23 : 385,113.22 = 214,287.32 : x
  2. Step 2: Convert to fraction form
    278,933.23/385,113.22 = 214,287.32/x
  3. Step 3: Cross multiply
    278,933.23x = 385,113.22 × 214,287.32
  4. Step 4: Simplify right side
    278,933.23x = 82,524,879,810.37
  5. Step 5: Solve for x
    x = 82,524,879,810.37/278,933.23
  6. Step 6: Final answer
    x = 295,858.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.