Finding the Fourth Proportional to 290,016.18, 400,235.58 and 169,138.26
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Solution
The fourth proportional to 290,016.18, 400,235.58 and 169,138.26 is: 233,418.53
Step by Step Solution
- Step 1: Write the proportion equation
290,016.18 : 400,235.58 = 169,138.26 : x - Step 2: Convert to fraction form
290,016.18/400,235.58 = 169,138.26/x - Step 3: Cross multiply
290,016.18x = 400,235.58 × 169,138.26 - Step 4: Simplify right side
290,016.18x = 67,695,149,591.29 - Step 5: Solve for x
x = 67,695,149,591.29/290,016.18 - Step 6: Final answer
x = 233,418.53
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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.