Finding the Fourth Proportional to 222,090.75, 306,487.67 and 121,488.75
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Solution
The fourth proportional to 222,090.75, 306,487.67 and 121,488.75 is: 167,655.80
Step by Step Solution
- Step 1: Write the proportion equation
222,090.75 : 306,487.67 = 121,488.75 : x - Step 2: Convert to fraction form
222,090.75/306,487.67 = 121,488.75/x - Step 3: Cross multiply
222,090.75x = 306,487.67 × 121,488.75 - Step 4: Simplify right side
222,090.75x = 37,234,803,311.27 - Step 5: Solve for x
x = 37,234,803,311.27/222,090.75 - Step 6: Final answer
x = 167,655.80
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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.