Finding the Fourth Proportional to 398,394.40, 597,931.80 and 161,906.80
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Solution
The fourth proportional to 398,394.40, 597,931.80 and 161,906.80 is: 242,998.46
Step by Step Solution
- Step 1: Write the proportion equation
398,394.40 : 597,931.80 = 161,906.80 : x - Step 2: Convert to fraction form
398,394.40/597,931.80 = 161,906.80/x - Step 3: Cross multiply
398,394.40x = 597,931.80 × 161,906.80 - Step 4: Simplify right side
398,394.40x = 96,809,224,356.24 - Step 5: Solve for x
x = 96,809,224,356.24/398,394.40 - Step 6: Final answer
x = 242,998.46
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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.