Finding the Fourth Proportional to 248,121.74, 342,407.99 and 140,691.75
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Solution
The fourth proportional to 248,121.74, 342,407.99 and 140,691.75 is: 194,154.60
Step by Step Solution
- Step 1: Write the proportion equation
248,121.74 : 342,407.99 = 140,691.75 : x - Step 2: Convert to fraction form
248,121.74/342,407.99 = 140,691.75/x - Step 3: Cross multiply
248,121.74x = 342,407.99 × 140,691.75 - Step 4: Simplify right side
248,121.74x = 48,173,978,394.78 - Step 5: Solve for x
x = 48,173,978,394.78/248,121.74 - Step 6: Final answer
x = 194,154.60
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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.