Finding the Fourth Proportional to 276,323.75, 381,326.79 and 157,091.75
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Solution
The fourth proportional to 276,323.75, 381,326.79 and 157,091.75 is: 216,786.62
Step by Step Solution
- Step 1: Write the proportion equation
276,323.75 : 381,326.79 = 157,091.75 : x - Step 2: Convert to fraction form
276,323.75/381,326.79 = 157,091.75/x - Step 3: Cross multiply
276,323.75x = 381,326.79 × 157,091.75 - Step 4: Simplify right side
276,323.75x = 59,903,292,762.98 - Step 5: Solve for x
x = 59,903,292,762.98/276,323.75 - Step 6: Final answer
x = 216,786.62
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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.