Finding the Fourth Proportional to 342,713.36, 472,959.21 and 189,751.55
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Solution
The fourth proportional to 342,713.36, 472,959.21 and 189,751.55 is: 261,865.32
Step by Step Solution
- Step 1: Write the proportion equation
342,713.36 : 472,959.21 = 189,751.55 : x - Step 2: Convert to fraction form
342,713.36/472,959.21 = 189,751.55/x - Step 3: Cross multiply
342,713.36x = 472,959.21 × 189,751.55 - Step 4: Simplify right side
342,713.36x = 89,744,740,819.48 - Step 5: Solve for x
x = 89,744,740,819.48/342,713.36 - Step 6: Final answer
x = 261,865.32
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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.