Finding the Fourth Proportional to 311,856.80, 430,472.97 and 184,532.09
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Solution
The fourth proportional to 311,856.80, 430,472.97 and 184,532.09 is: 254,719.72
Step by Step Solution
- Step 1: Write the proportion equation
311,856.80 : 430,472.97 = 184,532.09 : x - Step 2: Convert to fraction form
311,856.80/430,472.97 = 184,532.09/x - Step 3: Cross multiply
311,856.80x = 430,472.97 × 184,532.09 - Step 4: Simplify right side
311,856.80x = 79,436,074,690.24 - Step 5: Solve for x
x = 79,436,074,690.24/311,856.80 - Step 6: Final answer
x = 254,719.72
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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.