Finding the Fourth Proportional to 301,342.11, 415,839.01 and 165,378.31
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Solution
The fourth proportional to 301,342.11, 415,839.01 and 165,378.31 is: 228,214.88
Step by Step Solution
- Step 1: Write the proportion equation
301,342.11 : 415,839.01 = 165,378.31 : x - Step 2: Convert to fraction form
301,342.11/415,839.01 = 165,378.31/x - Step 3: Cross multiply
301,342.11x = 415,839.01 × 165,378.31 - Step 4: Simplify right side
301,342.11x = 68,770,751,878.98 - Step 5: Solve for x
x = 68,770,751,878.98/301,342.11 - Step 6: Final answer
x = 228,214.88
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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.