Finding the Fourth Proportional to 355,864.92, 491,079.18 and 212,703.96
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Solution
The fourth proportional to 355,864.92, 491,079.18 and 212,703.96 is: 293,522.85
Step by Step Solution
- Step 1: Write the proportion equation
355,864.92 : 491,079.18 = 212,703.96 : x - Step 2: Convert to fraction form
355,864.92/491,079.18 = 212,703.96/x - Step 3: Cross multiply
355,864.92x = 491,079.18 × 212,703.96 - Step 4: Simplify right side
355,864.92x = 104,454,486,259.55 - Step 5: Solve for x
x = 104,454,486,259.55/355,864.92 - Step 6: Final answer
x = 293,522.85
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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.