Finding the Fourth Proportional to 236,690.99, 326,636.16 and 129,264.18
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Solution
The fourth proportional to 236,690.99, 326,636.16 and 129,264.18 is: 178,385.99
Step by Step Solution
- Step 1: Write the proportion equation
236,690.99 : 326,636.16 = 129,264.18 : x - Step 2: Convert to fraction form
236,690.99/326,636.16 = 129,264.18/x - Step 3: Cross multiply
236,690.99x = 326,636.16 × 129,264.18 - Step 4: Simplify right side
236,690.99x = 42,222,355,380.75 - Step 5: Solve for x
x = 42,222,355,380.75/236,690.99 - Step 6: Final answer
x = 178,385.99
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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.