Finding the Fourth Proportional to 285,163.26, 393,525.79 and 156,101.81
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Solution
The fourth proportional to 285,163.26, 393,525.79 and 156,101.81 is: 215,420.77
Step by Step Solution
- Step 1: Write the proportion equation
285,163.26 : 393,525.79 = 156,101.81 : x - Step 2: Convert to fraction form
285,163.26/393,525.79 = 156,101.81/x - Step 3: Cross multiply
285,163.26x = 393,525.79 × 156,101.81 - Step 4: Simplify right side
285,163.26x = 61,430,090,464.90 - Step 5: Solve for x
x = 61,430,090,464.90/285,163.26 - Step 6: Final answer
x = 215,420.77
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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.