Finding the Fourth Proportional to 378,122.95, 521,802.95 and 206,042.12
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Solution
The fourth proportional to 378,122.95, 521,802.95 and 206,042.12 is: 284,334.46
Step by Step Solution
- Step 1: Write the proportion equation
378,122.95 : 521,802.95 = 206,042.12 : x - Step 2: Convert to fraction form
378,122.95/521,802.95 = 206,042.12/x - Step 3: Cross multiply
378,122.95x = 521,802.95 × 206,042.12 - Step 4: Simplify right side
378,122.95x = 107,513,385,825.36 - Step 5: Solve for x
x = 107,513,385,825.36/378,122.95 - Step 6: Final answer
x = 284,334.46
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1.5x scale
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.