Finding the Fourth Proportional to 285,318.22, 393,734.30 and 157,991.08
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Solution
The fourth proportional to 285,318.22, 393,734.30 and 157,991.08 is: 218,025.01
Step by Step Solution
- Step 1: Write the proportion equation
285,318.22 : 393,734.30 = 157,991.08 : x - Step 2: Convert to fraction form
285,318.22/393,734.30 = 157,991.08/x - Step 3: Cross multiply
285,318.22x = 393,734.30 × 157,991.08 - Step 4: Simplify right side
285,318.22x = 62,206,507,290.04 - Step 5: Solve for x
x = 62,206,507,290.04/285,318.22 - Step 6: Final answer
x = 218,025.01
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.