Finding the Fourth Proportional to 268,995.80, 403,493.70 and 129,027.80
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Solution
The fourth proportional to 268,995.80, 403,493.70 and 129,027.80 is: 193,541.70
Step by Step Solution
- Step 1: Write the proportion equation
268,995.80 : 403,493.70 = 129,027.80 : x - Step 2: Convert to fraction form
268,995.80/403,493.70 = 129,027.80/x - Step 3: Cross multiply
268,995.80x = 403,493.70 × 129,027.80 - Step 4: Simplify right side
268,995.80x = 52,061,904,424.86 - Step 5: Solve for x
x = 52,061,904,424.86/268,995.80 - Step 6: Final answer
x = 193,541.70
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1.5x scale
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.