Finding the Fourth Proportional to 236,819.35, 326,815.41 and 129,396.05
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Solution
The fourth proportional to 236,819.35, 326,815.41 and 129,396.05 is: 178,569.12
Step by Step Solution
- Step 1: Write the proportion equation
236,819.35 : 326,815.41 = 129,396.05 : x - Step 2: Convert to fraction form
236,819.35/326,815.41 = 129,396.05/x - Step 3: Cross multiply
236,819.35x = 326,815.41 × 129,396.05 - Step 4: Simplify right side
236,819.35x = 42,288,623,133.13 - Step 5: Solve for x
x = 42,288,623,133.13/236,819.35 - Step 6: Final answer
x = 178,569.12
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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.