Finding the Fourth Proportional to 274,253.36, 378,470.49 and 153,386.80
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Solution
The fourth proportional to 274,253.36, 378,470.49 and 153,386.80 is: 211,674.26
Step by Step Solution
- Step 1: Write the proportion equation
274,253.36 : 378,470.49 = 153,386.80 : x - Step 2: Convert to fraction form
274,253.36/378,470.49 = 153,386.80/x - Step 3: Cross multiply
274,253.36x = 378,470.49 × 153,386.80 - Step 4: Simplify right side
274,253.36x = 58,052,377,355.53 - Step 5: Solve for x
x = 58,052,377,355.53/274,253.36 - Step 6: Final answer
x = 211,674.26
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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.