Finding the Fourth Proportional to 257,121.96, 385,012.26 and 206,927.88
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Solution
The fourth proportional to 257,121.96, 385,012.26 and 206,927.88 is: 309,852.07
Step by Step Solution
- Step 1: Write the proportion equation
257,121.96 : 385,012.26 = 206,927.88 : x - Step 2: Convert to fraction form
257,121.96/385,012.26 = 206,927.88/x - Step 3: Cross multiply
257,121.96x = 385,012.26 × 206,927.88 - Step 4: Simplify right side
257,121.96x = 79,669,770,735.81 - Step 5: Solve for x
x = 79,669,770,735.81/257,121.96 - Step 6: Final answer
x = 309,852.07
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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.