Finding the Fourth Proportional to 306,056.10, 459,119.09 and 81,425.68
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Solution
The fourth proportional to 306,056.10, 459,119.09 and 81,425.68 is: 122,147.82
Step by Step Solution
- Step 1: Write the proportion equation
306,056.10 : 459,119.09 = 81,425.68 : x - Step 2: Convert to fraction form
306,056.10/459,119.09 = 81,425.68/x - Step 3: Cross multiply
306,056.10x = 459,119.09 × 81,425.68 - Step 4: Simplify right side
306,056.10x = 37,384,084,104.23 - Step 5: Solve for x
x = 37,384,084,104.23/306,056.10 - Step 6: Final answer
x = 122,147.82
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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.