Finding the Fourth Proportional to 171,867.78, 257,990.18 and 136,556.01
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Solution
The fourth proportional to 171,867.78, 257,990.18 and 136,556.01 is: 204,983.79
Step by Step Solution
- Step 1: Write the proportion equation
171,867.78 : 257,990.18 = 136,556.01 : x - Step 2: Convert to fraction form
171,867.78/257,990.18 = 136,556.01/x - Step 3: Cross multiply
171,867.78x = 257,990.18 × 136,556.01 - Step 4: Simplify right side
171,867.78x = 35,230,108,917.20 - Step 5: Solve for x
x = 35,230,108,917.20/171,867.78 - Step 6: Final answer
x = 204,983.79
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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.