Finding the Fourth Proportional to 259,096.66, 388,608.08 and 81,599.05
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Solution
The fourth proportional to 259,096.66, 388,608.08 and 81,599.05 is: 122,386.95
Step by Step Solution
- Step 1: Write the proportion equation
259,096.66 : 388,608.08 = 81,599.05 : x - Step 2: Convert to fraction form
259,096.66/388,608.08 = 81,599.05/x - Step 3: Cross multiply
259,096.66x = 388,608.08 × 81,599.05 - Step 4: Simplify right side
259,096.66x = 31,710,049,742.33 - Step 5: Solve for x
x = 31,710,049,742.33/259,096.66 - Step 6: Final answer
x = 122,386.95
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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.