Finding the Fourth Proportional to 276,672.68, 381,809.60 and 155,816.02
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Solution
The fourth proportional to 276,672.68, 381,809.60 and 155,816.02 is: 215,026.84
Step by Step Solution
- Step 1: Write the proportion equation
276,672.68 : 381,809.60 = 155,816.02 : x - Step 2: Convert to fraction form
276,672.68/381,809.60 = 155,816.02/x - Step 3: Cross multiply
276,672.68x = 381,809.60 × 155,816.02 - Step 4: Simplify right side
276,672.68x = 59,492,052,552.28 - Step 5: Solve for x
x = 59,492,052,552.28/276,672.68 - Step 6: Final answer
x = 215,026.84
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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.