Finding the Fourth Proportional to 308,984.70, 433,511.70 and 308,984.70
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Solution
The fourth proportional to 308,984.70, 433,511.70 and 308,984.70 is: 433,511.70
Step by Step Solution
- Step 1: Write the proportion equation
308,984.70 : 433,511.70 = 308,984.70 : x - Step 2: Convert to fraction form
308,984.70/433,511.70 = 308,984.70/x - Step 3: Cross multiply
308,984.70x = 433,511.70 × 308,984.70 - Step 4: Simplify right side
308,984.70x = 133,948,482,570.99 - Step 5: Solve for x
x = 133,948,482,570.99/308,984.70 - Step 6: Final answer
x = 433,511.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.