Finding the Fourth Proportional to 311,493.96, 467,189.82 and 86,869.62
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Solution
The fourth proportional to 311,493.96, 467,189.82 and 86,869.62 is: 130,290.17
Step by Step Solution
- Step 1: Write the proportion equation
311,493.96 : 467,189.82 = 86,869.62 : x - Step 2: Convert to fraction form
311,493.96/467,189.82 = 86,869.62/x - Step 3: Cross multiply
311,493.96x = 467,189.82 × 86,869.62 - Step 4: Simplify right side
311,493.96x = 40,584,602,131.27 - Step 5: Solve for x
x = 40,584,602,131.27/311,493.96 - Step 6: Final answer
x = 130,290.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.