Home / 275,945.88-380,836.78-153,450.38

Finding the Fourth Proportional to 275,945.88, 380,836.78 and 153,450.38

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Solution

The fourth proportional to 275,945.88, 380,836.78 and 153,450.38 is: 211,779.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,945.88 : 380,836.78 = 153,450.38 : x
  2. Step 2: Convert to fraction form
    275,945.88/380,836.78 = 153,450.38/x
  3. Step 3: Cross multiply
    275,945.88x = 380,836.78 × 153,450.38
  4. Step 4: Simplify right side
    275,945.88x = 58,439,548,608.98
  5. Step 5: Solve for x
    x = 58,439,548,608.98/275,945.88
  6. Step 6: Final answer
    x = 211,779.02

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1.5x scale

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.