Finding the Fourth Proportional to 208,945.75, 288,345.14 and 119,521.75
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Solution
The fourth proportional to 208,945.75, 288,345.14 and 119,521.75 is: 164,940.02
Step by Step Solution
- Step 1: Write the proportion equation
208,945.75 : 288,345.14 = 119,521.75 : x - Step 2: Convert to fraction form
208,945.75/288,345.14 = 119,521.75/x - Step 3: Cross multiply
208,945.75x = 288,345.14 × 119,521.75 - Step 4: Simplify right side
208,945.75x = 34,463,515,139.19 - Step 5: Solve for x
x = 34,463,515,139.19/208,945.75 - Step 6: Final answer
x = 164,940.02
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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.