Finding the Fourth Proportional to 208,992.36, 288,497.76 and 141,101.31
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Solution
The fourth proportional to 208,992.36, 288,497.76 and 141,101.31 is: 194,779.43
Step by Step Solution
- Step 1: Write the proportion equation
208,992.36 : 288,497.76 = 141,101.31 : x - Step 2: Convert to fraction form
208,992.36/288,497.76 = 141,101.31/x - Step 3: Cross multiply
208,992.36x = 288,497.76 × 141,101.31 - Step 4: Simplify right side
208,992.36x = 40,707,411,868.07 - Step 5: Solve for x
x = 40,707,411,868.07/208,992.36 - Step 6: Final answer
x = 194,779.43
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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.