Finding the Fourth Proportional to 187,863.19, 281,811.18 and 47,621.81
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Solution
The fourth proportional to 187,863.19, 281,811.18 and 47,621.81 is: 71,436.88
Step by Step Solution
- Step 1: Write the proportion equation
187,863.19 : 281,811.18 = 47,621.81 : x - Step 2: Convert to fraction form
187,863.19/281,811.18 = 47,621.81/x - Step 3: Cross multiply
187,863.19x = 281,811.18 × 47,621.81 - Step 4: Simplify right side
187,863.19x = 13,420,359,352.95 - Step 5: Solve for x
x = 13,420,359,352.95/187,863.19 - Step 6: Final answer
x = 71,436.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.