Finding the Fourth Proportional to 238,674.12, 329,378.79 and 131,252.32
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Solution
The fourth proportional to 238,674.12, 329,378.79 and 131,252.32 is: 181,132.88
Step by Step Solution
- Step 1: Write the proportion equation
238,674.12 : 329,378.79 = 131,252.32 : x - Step 2: Convert to fraction form
238,674.12/329,378.79 = 131,252.32/x - Step 3: Cross multiply
238,674.12x = 329,378.79 × 131,252.32 - Step 4: Simplify right side
238,674.12x = 43,231,730,346.29 - Step 5: Solve for x
x = 43,231,730,346.29/238,674.12 - Step 6: Final answer
x = 181,132.88
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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.