Finding the Fourth Proportional to 283,378.33, 390,396.93 and 197,189.09
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Solution
The fourth proportional to 283,378.33, 390,396.93 and 197,189.09 is: 271,658.09
Step by Step Solution
- Step 1: Write the proportion equation
283,378.33 : 390,396.93 = 197,189.09 : x - Step 2: Convert to fraction form
283,378.33/390,396.93 = 197,189.09/x - Step 3: Cross multiply
283,378.33x = 390,396.93 × 197,189.09 - Step 4: Simplify right side
283,378.33x = 76,982,015,365.49 - Step 5: Solve for x
x = 76,982,015,365.49/283,378.33 - Step 6: Final answer
x = 271,658.09
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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.