Finding the Fourth Proportional to 268,918.38, 403,377.84 and 69,239.21
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Solution
The fourth proportional to 268,918.38, 403,377.84 and 69,239.21 is: 103,858.88
Step by Step Solution
- Step 1: Write the proportion equation
268,918.38 : 403,377.84 = 69,239.21 : x - Step 2: Convert to fraction form
268,918.38/403,377.84 = 69,239.21/x - Step 3: Cross multiply
268,918.38x = 403,377.84 × 69,239.21 - Step 4: Simplify right side
268,918.38x = 27,929,560,956.22 - Step 5: Solve for x
x = 27,929,560,956.22/268,918.38 - Step 6: Final answer
x = 103,858.88
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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.