Finding the Fourth Proportional to 275,640.24, 380,387.52 and 154,807.68
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Solution
The fourth proportional to 275,640.24, 380,387.52 and 154,807.68 is: 213,636.84
Step by Step Solution
- Step 1: Write the proportion equation
275,640.24 : 380,387.52 = 154,807.68 : x - Step 2: Convert to fraction form
275,640.24/380,387.52 = 154,807.68/x - Step 3: Cross multiply
275,640.24x = 380,387.52 × 154,807.68 - Step 4: Simplify right side
275,640.24x = 58,886,909,472.15 - Step 5: Solve for x
x = 58,886,909,472.15/275,640.24 - Step 6: Final answer
x = 213,636.84
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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.