Finding the Fourth Proportional to 331,521.68, 497,278.85 and 198,439.08
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Solution
The fourth proportional to 331,521.68, 497,278.85 and 198,439.08 is: 297,656.42
Step by Step Solution
- Step 1: Write the proportion equation
331,521.68 : 497,278.85 = 198,439.08 : x - Step 2: Convert to fraction form
331,521.68/497,278.85 = 198,439.08/x - Step 3: Cross multiply
331,521.68x = 497,278.85 × 198,439.08 - Step 4: Simplify right side
331,521.68x = 98,679,556,505.26 - Step 5: Solve for x
x = 98,679,556,505.26/331,521.68 - Step 6: Final answer
x = 297,656.42
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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.