Finding the Fourth Proportional to 238,972.38, 329,743.29 and 136,979.07
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Solution
The fourth proportional to 238,972.38, 329,743.29 and 136,979.07 is: 189,008.99
Step by Step Solution
- Step 1: Write the proportion equation
238,972.38 : 329,743.29 = 136,979.07 : x - Step 2: Convert to fraction form
238,972.38/329,743.29 = 136,979.07/x - Step 3: Cross multiply
238,972.38x = 329,743.29 × 136,979.07 - Step 4: Simplify right side
238,972.38x = 45,167,929,202.94 - Step 5: Solve for x
x = 45,167,929,202.94/238,972.38 - Step 6: Final answer
x = 189,008.99
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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.