Finding the Fourth Proportional to 214,206.05, 320,971.12 and 79,084.31
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Solution
The fourth proportional to 214,206.05, 320,971.12 and 79,084.31 is: 118,501.69
Step by Step Solution
- Step 1: Write the proportion equation
214,206.05 : 320,971.12 = 79,084.31 : x - Step 2: Convert to fraction form
214,206.05/320,971.12 = 79,084.31/x - Step 3: Cross multiply
214,206.05x = 320,971.12 × 79,084.31 - Step 4: Simplify right side
214,206.05x = 25,383,779,555.13 - Step 5: Solve for x
x = 25,383,779,555.13/214,206.05 - Step 6: Final answer
x = 118,501.69
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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.