Finding the Fourth Proportional to 226,784.10, 339,938.82 and 84,572.17
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Solution
The fourth proportional to 226,784.10, 339,938.82 and 84,572.17 is: 126,769.75
Step by Step Solution
- Step 1: Write the proportion equation
226,784.10 : 339,938.82 = 84,572.17 : x - Step 2: Convert to fraction form
226,784.10/339,938.82 = 84,572.17/x - Step 3: Cross multiply
226,784.10x = 339,938.82 × 84,572.17 - Step 4: Simplify right side
226,784.10x = 28,749,362,824.79 - Step 5: Solve for x
x = 28,749,362,824.79/226,784.10 - Step 6: Final answer
x = 126,769.75
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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.