Finding the Fourth Proportional to 239,013.36, 329,836.68 and 131,585.28
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Solution
The fourth proportional to 239,013.36, 329,836.68 and 131,585.28 is: 181,586.72
Step by Step Solution
- Step 1: Write the proportion equation
239,013.36 : 329,836.68 = 131,585.28 : x - Step 2: Convert to fraction form
239,013.36/329,836.68 = 131,585.28/x - Step 3: Cross multiply
239,013.36x = 329,836.68 × 131,585.28 - Step 4: Simplify right side
239,013.36x = 43,401,651,892.07 - Step 5: Solve for x
x = 43,401,651,892.07/239,013.36 - Step 6: Final answer
x = 181,586.72
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1.5x scale
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.