Finding the Fourth Proportional to 283,238.99, 390,874.79 and 154,181.17
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Solution
The fourth proportional to 283,238.99, 390,874.79 and 154,181.17 is: 212,772.73
Step by Step Solution
- Step 1: Write the proportion equation
283,238.99 : 390,874.79 = 154,181.17 : x - Step 2: Convert to fraction form
283,238.99/390,874.79 = 154,181.17/x - Step 3: Cross multiply
283,238.99x = 390,874.79 × 154,181.17 - Step 4: Simplify right side
283,238.99x = 60,265,532,452.48 - Step 5: Solve for x
x = 60,265,532,452.48/283,238.99 - Step 6: Final answer
x = 212,772.73
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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.