Finding the Fourth Proportional to 203,239.20, 280,466.30 and 122,670.12
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Solution
The fourth proportional to 203,239.20, 280,466.30 and 122,670.12 is: 169,282.47
Step by Step Solution
- Step 1: Write the proportion equation
203,239.20 : 280,466.30 = 122,670.12 : x - Step 2: Convert to fraction form
203,239.20/280,466.30 = 122,670.12/x - Step 3: Cross multiply
203,239.20x = 280,466.30 × 122,670.12 - Step 4: Simplify right side
203,239.20x = 34,404,834,063.61 - Step 5: Solve for x
x = 34,404,834,063.61/203,239.20 - Step 6: Final answer
x = 169,282.47
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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.