Home / 273,979.26-378,090.27-153,120.48

Finding the Fourth Proportional to 273,979.26, 378,090.27 and 153,120.48

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Solution

The fourth proportional to 273,979.26, 378,090.27 and 153,120.48 is: 211,305.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,979.26 : 378,090.27 = 153,120.48 : x
  2. Step 2: Convert to fraction form
    273,979.26/378,090.27 = 153,120.48/x
  3. Step 3: Cross multiply
    273,979.26x = 378,090.27 × 153,120.48
  4. Step 4: Simplify right side
    273,979.26x = 57,893,363,625.73
  5. Step 5: Solve for x
    x = 57,893,363,625.73/273,979.26
  6. Step 6: Final answer
    x = 211,305.64

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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.