Finding the Fourth Proportional to 378,242.09, 521,970.71 and 206,160.05
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Solution
The fourth proportional to 378,242.09, 521,970.71 and 206,160.05 is: 284,499.03
Step by Step Solution
- Step 1: Write the proportion equation
378,242.09 : 521,970.71 = 206,160.05 : x - Step 2: Convert to fraction form
378,242.09/521,970.71 = 206,160.05/x - Step 3: Cross multiply
378,242.09x = 521,970.71 × 206,160.05 - Step 4: Simplify right side
378,242.09x = 107,609,506,363.10 - Step 5: Solve for x
x = 107,609,506,363.10/378,242.09 - Step 6: Final answer
x = 284,499.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.