Finding the Fourth Proportional to 236,787.62, 326,768.06 and 129,359.44
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Solution
The fourth proportional to 236,787.62, 326,768.06 and 129,359.44 is: 178,516.66
Step by Step Solution
- Step 1: Write the proportion equation
236,787.62 : 326,768.06 = 129,359.44 : x - Step 2: Convert to fraction form
236,787.62/326,768.06 = 129,359.44/x - Step 3: Cross multiply
236,787.62x = 326,768.06 × 129,359.44 - Step 4: Simplify right side
236,787.62x = 42,270,533,983.35 - Step 5: Solve for x
x = 42,270,533,983.35/236,787.62 - Step 6: Final answer
x = 178,516.66
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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.