Finding the Fourth Proportional to 274,542.99, 378,877.25 and 153,683.57
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Solution
The fourth proportional to 274,542.99, 378,877.25 and 153,683.57 is: 212,087.75
Step by Step Solution
- Step 1: Write the proportion equation
274,542.99 : 378,877.25 = 153,683.57 : x - Step 2: Convert to fraction form
274,542.99/378,877.25 = 153,683.57/x - Step 3: Cross multiply
274,542.99x = 378,877.25 × 153,683.57 - Step 4: Simplify right side
274,542.99x = 58,227,206,174.73 - Step 5: Solve for x
x = 58,227,206,174.73/274,542.99 - Step 6: Final answer
x = 212,087.75
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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.