Finding the Fourth Proportional to 314,347.92, 471,517.26 and 77,690.62
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Solution
The fourth proportional to 314,347.92, 471,517.26 and 77,690.62 is: 116,534.79
Step by Step Solution
- Step 1: Write the proportion equation
314,347.92 : 471,517.26 = 77,690.62 : x - Step 2: Convert to fraction form
314,347.92/471,517.26 = 77,690.62/x - Step 3: Cross multiply
314,347.92x = 471,517.26 × 77,690.62 - Step 4: Simplify right side
314,347.92x = 36,632,468,270.10 - Step 5: Solve for x
x = 36,632,468,270.10/314,347.92 - Step 6: Final answer
x = 116,534.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.