Finding the Fourth Proportional to 216,273.25, 298,435.21 and 124,390.09
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Solution
The fourth proportional to 216,273.25, 298,435.21 and 124,390.09 is: 171,645.74
Step by Step Solution
- Step 1: Write the proportion equation
216,273.25 : 298,435.21 = 124,390.09 : x - Step 2: Convert to fraction form
216,273.25/298,435.21 = 124,390.09/x - Step 3: Cross multiply
216,273.25x = 298,435.21 × 124,390.09 - Step 4: Simplify right side
216,273.25x = 37,122,382,631.07 - Step 5: Solve for x
x = 37,122,382,631.07/216,273.25 - Step 6: Final answer
x = 171,645.74
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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.