Finding the Fourth Proportional to 285,819.35, 394,446.47 and 158,492.21
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Solution
The fourth proportional to 285,819.35, 394,446.47 and 158,492.21 is: 218,727.99
Step by Step Solution
- Step 1: Write the proportion equation
285,819.35 : 394,446.47 = 158,492.21 : x - Step 2: Convert to fraction form
285,819.35/394,446.47 = 158,492.21/x - Step 3: Cross multiply
285,819.35x = 394,446.47 × 158,492.21 - Step 4: Simplify right side
285,819.35x = 62,516,689,992.31 - Step 5: Solve for x
x = 62,516,689,992.31/285,819.35 - Step 6: Final answer
x = 218,727.99
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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.