Finding the Fourth Proportional to 290,059.96, 399,536.94 and 205,030.84
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Solution
The fourth proportional to 290,059.96, 399,536.94 and 205,030.84 is: 282,415.38
Step by Step Solution
- Step 1: Write the proportion equation
290,059.96 : 399,536.94 = 205,030.84 : x - Step 2: Convert to fraction form
290,059.96/399,536.94 = 205,030.84/x - Step 3: Cross multiply
290,059.96x = 399,536.94 × 205,030.84 - Step 4: Simplify right side
290,059.96x = 81,917,394,419.23 - Step 5: Solve for x
x = 81,917,394,419.23/290,059.96 - Step 6: Final answer
x = 282,415.38
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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.