Finding the Fourth Proportional to 218,367.36, 301,511.21 and 214,879.76
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Solution
The fourth proportional to 218,367.36, 301,511.21 and 214,879.76 is: 296,695.69
Step by Step Solution
- Step 1: Write the proportion equation
218,367.36 : 301,511.21 = 214,879.76 : x - Step 2: Convert to fraction form
218,367.36/301,511.21 = 214,879.76/x - Step 3: Cross multiply
218,367.36x = 301,511.21 × 214,879.76 - Step 4: Simplify right side
218,367.36x = 64,788,653,860.15 - Step 5: Solve for x
x = 64,788,653,860.15/218,367.36 - Step 6: Final answer
x = 296,695.69
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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.