Home / 273,968.07-378,074.64-153,109.29

Finding the Fourth Proportional to 273,968.07, 378,074.64 and 153,109.29

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Solution

The fourth proportional to 273,968.07, 378,074.64 and 153,109.29 is: 211,290.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,968.07 : 378,074.64 = 153,109.29 : x
  2. Step 2: Convert to fraction form
    273,968.07/378,074.64 = 153,109.29/x
  3. Step 3: Cross multiply
    273,968.07x = 378,074.64 × 153,109.29
  4. Step 4: Simplify right side
    273,968.07x = 57,886,738,701.44
  5. Step 5: Solve for x
    x = 57,886,738,701.44/273,968.07
  6. Step 6: Final answer
    x = 211,290.09

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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.