Finding the Fourth Proportional to 171,884.24, 257,833.26 and 81,880.68
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Solution
The fourth proportional to 171,884.24, 257,833.26 and 81,880.68 is: 122,824.31
Step by Step Solution
- Step 1: Write the proportion equation
171,884.24 : 257,833.26 = 81,880.68 : x - Step 2: Convert to fraction form
171,884.24/257,833.26 = 81,880.68/x - Step 3: Cross multiply
171,884.24x = 257,833.26 × 81,880.68 - Step 4: Simplify right side
171,884.24x = 21,111,562,655.42 - Step 5: Solve for x
x = 21,111,562,655.42/171,884.24 - Step 6: Final answer
x = 122,824.31
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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.