Finding the Fourth Proportional to 331,729.18, 497,299.08 and 129,278.44
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Solution
The fourth proportional to 331,729.18, 497,299.08 and 129,278.44 is: 193,802.82
Step by Step Solution
- Step 1: Write the proportion equation
331,729.18 : 497,299.08 = 129,278.44 : x - Step 2: Convert to fraction form
331,729.18/497,299.08 = 129,278.44/x - Step 3: Cross multiply
331,729.18x = 497,299.08 × 129,278.44 - Step 4: Simplify right side
331,729.18x = 64,290,049,275.84 - Step 5: Solve for x
x = 64,290,049,275.84/331,729.18 - Step 6: Final answer
x = 193,802.82
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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.