Finding the Fourth Proportional to 347,093.21, 478,989.68 and 194,133.99
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Solution
The fourth proportional to 347,093.21, 478,989.68 and 194,133.99 is: 267,905.49
Step by Step Solution
- Step 1: Write the proportion equation
347,093.21 : 478,989.68 = 194,133.99 : x - Step 2: Convert to fraction form
347,093.21/478,989.68 = 194,133.99/x - Step 3: Cross multiply
347,093.21x = 478,989.68 × 194,133.99 - Step 4: Simplify right side
347,093.21x = 92,988,177,747.22 - Step 5: Solve for x
x = 92,988,177,747.22/347,093.21 - Step 6: Final answer
x = 267,905.49
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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.