Finding the Fourth Proportional to 292,556.70, 403,728.12 and 158,420.70
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Solution
The fourth proportional to 292,556.70, 403,728.12 and 158,420.70 is: 218,620.50
Step by Step Solution
- Step 1: Write the proportion equation
292,556.70 : 403,728.12 = 158,420.70 : x - Step 2: Convert to fraction form
292,556.70/403,728.12 = 158,420.70/x - Step 3: Cross multiply
292,556.70x = 403,728.12 × 158,420.70 - Step 4: Simplify right side
292,556.70x = 63,958,891,380.08 - Step 5: Solve for x
x = 63,958,891,380.08/292,556.70 - Step 6: Final answer
x = 218,620.50
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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.