Finding the Fourth Proportional to 292,279.80, 438,419.70 and 288,343.20
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Solution
The fourth proportional to 292,279.80, 438,419.70 and 288,343.20 is: 432,514.80
Step by Step Solution
- Step 1: Write the proportion equation
292,279.80 : 438,419.70 = 288,343.20 : x - Step 2: Convert to fraction form
292,279.80/438,419.70 = 288,343.20/x - Step 3: Cross multiply
292,279.80x = 438,419.70 × 288,343.20 - Step 4: Simplify right side
292,279.80x = 126,415,339,241.04 - Step 5: Solve for x
x = 126,415,339,241.04/292,279.80 - Step 6: Final answer
x = 432,514.80
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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.