Finding the Fourth Proportional to 197,419.62, 272,439.12 and 111,396.86
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Solution
The fourth proportional to 197,419.62, 272,439.12 and 111,396.86 is: 153,727.70
Step by Step Solution
- Step 1: Write the proportion equation
197,419.62 : 272,439.12 = 111,396.86 : x - Step 2: Convert to fraction form
197,419.62/272,439.12 = 111,396.86/x - Step 3: Cross multiply
197,419.62x = 272,439.12 × 111,396.86 - Step 4: Simplify right side
197,419.62x = 30,348,863,190.26 - Step 5: Solve for x
x = 30,348,863,190.26/197,419.62 - Step 6: Final answer
x = 153,727.70
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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.