Finding the Fourth Proportional to 278,882.19, 384,841.80 and 151,556.94
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Solution
The fourth proportional to 278,882.19, 384,841.80 and 151,556.94 is: 209,140.09
Step by Step Solution
- Step 1: Write the proportion equation
278,882.19 : 384,841.80 = 151,556.94 : x - Step 2: Convert to fraction form
278,882.19/384,841.80 = 151,556.94/x - Step 3: Cross multiply
278,882.19x = 384,841.80 × 151,556.94 - Step 4: Simplify right side
278,882.19x = 58,325,445,592.09 - Step 5: Solve for x
x = 58,325,445,592.09/278,882.19 - Step 6: Final answer
x = 209,140.09
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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.