Finding the Fourth Proportional to 222,283.80, 306,749.58 and 120,307.20
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Solution
The fourth proportional to 222,283.80, 306,749.58 and 120,307.20 is: 166,022.82
Step by Step Solution
- Step 1: Write the proportion equation
222,283.80 : 306,749.58 = 120,307.20 : x - Step 2: Convert to fraction form
222,283.80/306,749.58 = 120,307.20/x - Step 3: Cross multiply
222,283.80x = 306,749.58 × 120,307.20 - Step 4: Simplify right side
222,283.80x = 36,904,183,070.98 - Step 5: Solve for x
x = 36,904,183,070.98/222,283.80 - Step 6: Final answer
x = 166,022.82
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1.5x scale
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.