Finding the Fourth Proportional to 315,372.93, 435,439.92 and 194,678.07
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Solution
The fourth proportional to 315,372.93, 435,439.92 and 194,678.07 is: 268,794.80
Step by Step Solution
- Step 1: Write the proportion equation
315,372.93 : 435,439.92 = 194,678.07 : x - Step 2: Convert to fraction form
315,372.93/435,439.92 = 194,678.07/x - Step 3: Cross multiply
315,372.93x = 435,439.92 × 194,678.07 - Step 4: Simplify right side
315,372.93x = 84,770,603,226.55 - Step 5: Solve for x
x = 84,770,603,226.55/315,372.93 - Step 6: Final answer
x = 268,794.80
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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.