Finding the Fourth Proportional to 298,338.12, 411,757.74 and 190,902.96
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Solution
The fourth proportional to 298,338.12, 411,757.74 and 190,902.96 is: 263,478.81
Step by Step Solution
- Step 1: Write the proportion equation
298,338.12 : 411,757.74 = 190,902.96 : x - Step 2: Convert to fraction form
298,338.12/411,757.74 = 190,902.96/x - Step 3: Cross multiply
298,338.12x = 411,757.74 × 190,902.96 - Step 4: Simplify right side
298,338.12x = 78,605,771,368.91 - Step 5: Solve for x
x = 78,605,771,368.91/298,338.12 - Step 6: Final answer
x = 263,478.81
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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.