Finding the Fourth Proportional to 274,496.40, 378,804.98 and 153,637.69
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Solution
The fourth proportional to 274,496.40, 378,804.98 and 153,637.69 is: 212,019.98
Step by Step Solution
- Step 1: Write the proportion equation
274,496.40 : 378,804.98 = 153,637.69 : x - Step 2: Convert to fraction form
274,496.40/378,804.98 = 153,637.69/x - Step 3: Cross multiply
274,496.40x = 378,804.98 × 153,637.69 - Step 4: Simplify right side
274,496.40x = 58,198,721,524.78 - Step 5: Solve for x
x = 58,198,721,524.78/274,496.40 - Step 6: Final answer
x = 212,019.98
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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.