Finding the Fourth Proportional to 234,865.05, 324,197.84 and 139,371.75
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Solution
The fourth proportional to 234,865.05, 324,197.84 and 139,371.75 is: 192,382.90
Step by Step Solution
- Step 1: Write the proportion equation
234,865.05 : 324,197.84 = 139,371.75 : x - Step 2: Convert to fraction form
234,865.05/324,197.84 = 139,371.75/x - Step 3: Cross multiply
234,865.05x = 324,197.84 × 139,371.75 - Step 4: Simplify right side
234,865.05x = 45,184,017,989.17 - Step 5: Solve for x
x = 45,184,017,989.17/234,865.05 - Step 6: Final answer
x = 192,382.90
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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.