Home / 274,239.06-378,448.83-153,379.86

Finding the Fourth Proportional to 274,239.06, 378,448.83 and 153,379.86

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Solution

The fourth proportional to 274,239.06, 378,448.83 and 153,379.86 is: 211,663.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,239.06 : 378,448.83 = 153,379.86 : x
  2. Step 2: Convert to fraction form
    274,239.06/378,448.83 = 153,379.86/x
  3. Step 3: Cross multiply
    274,239.06x = 378,448.83 × 153,379.86
  4. Step 4: Simplify right side
    274,239.06x = 58,046,428,562.56
  5. Step 5: Solve for x
    x = 58,046,428,562.56/274,239.06
  6. Step 6: Final answer
    x = 211,663.61

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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.