Finding the Fourth Proportional to 274,781.36, 411,635.40 and 189,377.09
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Solution
The fourth proportional to 274,781.36, 411,635.40 and 189,377.09 is: 283,695.79
Step by Step Solution
- Step 1: Write the proportion equation
274,781.36 : 411,635.40 = 189,377.09 : x - Step 2: Convert to fraction form
274,781.36/411,635.40 = 189,377.09/x - Step 3: Cross multiply
274,781.36x = 411,635.40 × 189,377.09 - Step 4: Simplify right side
274,781.36x = 77,954,314,192.99 - Step 5: Solve for x
x = 77,954,314,192.99/274,781.36 - Step 6: Final answer
x = 283,695.79
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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.