Finding the Fourth Proportional to 309,519.99, 426,956.16 and 194,616.53
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Solution
The fourth proportional to 309,519.99, 426,956.16 and 194,616.53 is: 268,456.74
Step by Step Solution
- Step 1: Write the proportion equation
309,519.99 : 426,956.16 = 194,616.53 : x - Step 2: Convert to fraction form
309,519.99/426,956.16 = 194,616.53/x - Step 3: Cross multiply
309,519.99x = 426,956.16 × 194,616.53 - Step 4: Simplify right side
309,519.99x = 83,092,726,517.44 - Step 5: Solve for x
x = 83,092,726,517.44/309,519.99 - Step 6: Final answer
x = 268,456.74
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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.