Finding the Fourth Proportional to 311,716.32, 430,159.91 and 175,749.08
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Solution
The fourth proportional to 311,716.32, 430,159.91 and 175,749.08 is: 242,528.87
Step by Step Solution
- Step 1: Write the proportion equation
311,716.32 : 430,159.91 = 175,749.08 : x - Step 2: Convert to fraction form
311,716.32/430,159.91 = 175,749.08/x - Step 3: Cross multiply
311,716.32x = 430,159.91 × 175,749.08 - Step 4: Simplify right side
311,716.32x = 75,600,205,405.84 - Step 5: Solve for x
x = 75,600,205,405.84/311,716.32 - Step 6: Final answer
x = 242,528.87
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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.