Finding the Fourth Proportional to 311,889.84, 430,408.22 and 168,649.96
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Solution
The fourth proportional to 311,889.84, 430,408.22 and 168,649.96 is: 232,737.08
Step by Step Solution
- Step 1: Write the proportion equation
311,889.84 : 430,408.22 = 168,649.96 : x - Step 2: Convert to fraction form
311,889.84/430,408.22 = 168,649.96/x - Step 3: Cross multiply
311,889.84x = 430,408.22 × 168,649.96 - Step 4: Simplify right side
311,889.84x = 72,588,329,086.67 - Step 5: Solve for x
x = 72,588,329,086.67/311,889.84 - Step 6: Final answer
x = 232,737.08
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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.