Finding the Fourth Proportional to 379,760.18, 569,695.55 and 139,988.84
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Solution
The fourth proportional to 379,760.18, 569,695.55 and 139,988.84 is: 210,003.63
Step by Step Solution
- Step 1: Write the proportion equation
379,760.18 : 569,695.55 = 139,988.84 : x - Step 2: Convert to fraction form
379,760.18/569,695.55 = 139,988.84/x - Step 3: Cross multiply
379,760.18x = 569,695.55 × 139,988.84 - Step 4: Simplify right side
379,760.18x = 79,751,015,649.24 - Step 5: Solve for x
x = 79,751,015,649.24/379,760.18 - Step 6: Final answer
x = 210,003.63
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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.