Finding the Fourth Proportional to 306,352.10, 459,707.97 and 128,845.46
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Solution
The fourth proportional to 306,352.10, 459,707.97 and 128,845.46 is: 193,343.82
Step by Step Solution
- Step 1: Write the proportion equation
306,352.10 : 459,707.97 = 128,845.46 : x - Step 2: Convert to fraction form
306,352.10/459,707.97 = 128,845.46/x - Step 3: Cross multiply
306,352.10x = 459,707.97 × 128,845.46 - Step 4: Simplify right side
306,352.10x = 59,231,284,860.32 - Step 5: Solve for x
x = 59,231,284,860.32/306,352.10 - Step 6: Final answer
x = 193,343.82
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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.