Finding the Fourth Proportional to 354,236.06, 531,361.38 and 143,730.02
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Solution
The fourth proportional to 354,236.06, 531,361.38 and 143,730.02 is: 215,597.99
Step by Step Solution
- Step 1: Write the proportion equation
354,236.06 : 531,361.38 = 143,730.02 : x - Step 2: Convert to fraction form
354,236.06/531,361.38 = 143,730.02/x - Step 3: Cross multiply
354,236.06x = 531,361.38 × 143,730.02 - Step 4: Simplify right side
354,236.06x = 76,372,581,774.63 - Step 5: Solve for x
x = 76,372,581,774.63/354,236.06 - Step 6: Final answer
x = 215,597.99
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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.