Finding the Fourth Proportional to 342,160.19, 513,207.26 and 105,439.31
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Solution
The fourth proportional to 342,160.19, 513,207.26 and 105,439.31 is: 158,148.78
Step by Step Solution
- Step 1: Write the proportion equation
342,160.19 : 513,207.26 = 105,439.31 : x - Step 2: Convert to fraction form
342,160.19/513,207.26 = 105,439.31/x - Step 3: Cross multiply
342,160.19x = 513,207.26 × 105,439.31 - Step 4: Simplify right side
342,160.19x = 54,112,217,078.95 - Step 5: Solve for x
x = 54,112,217,078.95/342,160.19 - Step 6: Final answer
x = 158,148.78
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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.