Finding the Fourth Proportional to 214,285.14, 320,481.63 and 129,811.86
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Solution
The fourth proportional to 214,285.14, 320,481.63 and 129,811.86 is: 194,144.66
Step by Step Solution
- Step 1: Write the proportion equation
214,285.14 : 320,481.63 = 129,811.86 : x - Step 2: Convert to fraction form
214,285.14/320,481.63 = 129,811.86/x - Step 3: Cross multiply
214,285.14x = 320,481.63 × 129,811.86 - Step 4: Simplify right side
214,285.14x = 41,602,316,486.13 - Step 5: Solve for x
x = 41,602,316,486.13/214,285.14 - Step 6: Final answer
x = 194,144.66
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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.