Home / 273,986.08-378,093.68-153,128.36

Finding the Fourth Proportional to 273,986.08, 378,093.68 and 153,128.36

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Solution

The fourth proportional to 273,986.08, 378,093.68 and 153,128.36 is: 211,313.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,986.08 : 378,093.68 = 153,128.36 : x
  2. Step 2: Convert to fraction form
    273,986.08/378,093.68 = 153,128.36/x
  3. Step 3: Cross multiply
    273,986.08x = 378,093.68 × 153,128.36
  4. Step 4: Simplify right side
    273,986.08x = 57,896,865,144.76
  5. Step 5: Solve for x
    x = 57,896,865,144.76/273,986.08
  6. Step 6: Final answer
    x = 211,313.16

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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.