Finding the Fourth Proportional to 239,939.24, 331,116.32 and 131,045.06
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Solution
The fourth proportional to 239,939.24, 331,116.32 and 131,045.06 is: 180,842.28
Step by Step Solution
- Step 1: Write the proportion equation
239,939.24 : 331,116.32 = 131,045.06 : x - Step 2: Convert to fraction form
239,939.24/331,116.32 = 131,045.06/x - Step 3: Cross multiply
239,939.24x = 331,116.32 × 131,045.06 - Step 4: Simplify right side
239,939.24x = 43,391,159,176.78 - Step 5: Solve for x
x = 43,391,159,176.78/239,939.24 - Step 6: Final answer
x = 180,842.28
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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.