Finding the Fourth Proportional to 236,787.12, 326,774.34 and 129,365.31
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Solution
The fourth proportional to 236,787.12, 326,774.34 and 129,365.31 is: 178,528.56
Step by Step Solution
- Step 1: Write the proportion equation
236,787.12 : 326,774.34 = 129,365.31 : x - Step 2: Convert to fraction form
236,787.12/326,774.34 = 129,365.31/x - Step 3: Cross multiply
236,787.12x = 326,774.34 × 129,365.31 - Step 4: Simplify right side
236,787.12x = 42,273,263,794.15 - Step 5: Solve for x
x = 42,273,263,794.15/236,787.12 - Step 6: Final answer
x = 178,528.56
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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.