Finding the Fourth Proportional to 393,579.99, 590,639.61 and 137,412.59
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Solution
The fourth proportional to 393,579.99, 590,639.61 and 137,412.59 is: 206,213.02
Step by Step Solution
- Step 1: Write the proportion equation
393,579.99 : 590,639.61 = 137,412.59 : x - Step 2: Convert to fraction form
393,579.99/590,639.61 = 137,412.59/x - Step 3: Cross multiply
393,579.99x = 590,639.61 × 137,412.59 - Step 4: Simplify right side
393,579.99x = 81,161,318,566.69 - Step 5: Solve for x
x = 81,161,318,566.69/393,579.99 - Step 6: Final answer
x = 206,213.02
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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.