Finding the Fourth Proportional to 305,790.18, 422,004.48 and 169,824.75
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Solution
The fourth proportional to 305,790.18, 422,004.48 and 169,824.75 is: 234,365.95
Step by Step Solution
- Step 1: Write the proportion equation
305,790.18 : 422,004.48 = 169,824.75 : x - Step 2: Convert to fraction form
305,790.18/422,004.48 = 169,824.75/x - Step 3: Cross multiply
305,790.18x = 422,004.48 × 169,824.75 - Step 4: Simplify right side
305,790.18x = 71,666,805,314.88 - Step 5: Solve for x
x = 71,666,805,314.88/305,790.18 - Step 6: Final answer
x = 234,365.95
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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.