Finding the Fourth Proportional to 311,823.14, 430,315.96 and 168,583.14
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Solution
The fourth proportional to 311,823.14, 430,315.96 and 168,583.14 is: 232,644.75
Step by Step Solution
- Step 1: Write the proportion equation
311,823.14 : 430,315.96 = 168,583.14 : x - Step 2: Convert to fraction form
311,823.14/430,315.96 = 168,583.14/x - Step 3: Cross multiply
311,823.14x = 430,315.96 × 168,583.14 - Step 4: Simplify right side
311,823.14x = 72,544,015,623.55 - Step 5: Solve for x
x = 72,544,015,623.55/311,823.14 - Step 6: Final answer
x = 232,644.75
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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.