Finding the Fourth Proportional to 276,750.68, 381,873.76 and 155,884.32
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Solution
The fourth proportional to 276,750.68, 381,873.76 and 155,884.32 is: 215,096.60
Step by Step Solution
- Step 1: Write the proportion equation
276,750.68 : 381,873.76 = 155,884.32 : x - Step 2: Convert to fraction form
276,750.68/381,873.76 = 155,884.32/x - Step 3: Cross multiply
276,750.68x = 381,873.76 × 155,884.32 - Step 4: Simplify right side
276,750.68x = 59,528,131,403.44 - Step 5: Solve for x
x = 59,528,131,403.44/276,750.68 - Step 6: Final answer
x = 215,096.60
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1.5x scale
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.