Finding the Fourth Proportional to 236,514.98, 326,388.12 and 129,084.14
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Solution
The fourth proportional to 236,514.98, 326,388.12 and 129,084.14 is: 178,134.72
Step by Step Solution
- Step 1: Write the proportion equation
236,514.98 : 326,388.12 = 129,084.14 : x - Step 2: Convert to fraction form
236,514.98/326,388.12 = 129,084.14/x - Step 3: Cross multiply
236,514.98x = 326,388.12 × 129,084.14 - Step 4: Simplify right side
236,514.98x = 42,131,529,776.42 - Step 5: Solve for x
x = 42,131,529,776.42/236,514.98 - Step 6: Final answer
x = 178,134.72
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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.