Finding the Fourth Proportional to 306,611.17, 459,935.21 and 129,132.02
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Solution
The fourth proportional to 306,611.17, 459,935.21 and 129,132.02 is: 193,705.79
Step by Step Solution
- Step 1: Write the proportion equation
306,611.17 : 459,935.21 = 129,132.02 : x - Step 2: Convert to fraction form
306,611.17/459,935.21 = 129,132.02/x - Step 3: Cross multiply
306,611.17x = 459,935.21 × 129,132.02 - Step 4: Simplify right side
306,611.17x = 59,392,359,791.09 - Step 5: Solve for x
x = 59,392,359,791.09/306,611.17 - Step 6: Final answer
x = 193,705.79
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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.