Home / 274,020.30-378,183.67-153,186.73

Finding the Fourth Proportional to 274,020.30, 378,183.67 and 153,186.73

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Solution

The fourth proportional to 274,020.30, 378,183.67 and 153,186.73 is: 211,417.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,020.30 : 378,183.67 = 153,186.73 : x
  2. Step 2: Convert to fraction form
    274,020.30/378,183.67 = 153,186.73/x
  3. Step 3: Cross multiply
    274,020.30x = 378,183.67 × 153,186.73
  4. Step 4: Simplify right side
    274,020.30x = 57,932,718,418.27
  5. Step 5: Solve for x
    x = 57,932,718,418.27/274,020.30
  6. Step 6: Final answer
    x = 211,417.62

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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.