Finding the Fourth Proportional to 239,371.09, 330,317.09 and 131,935.21
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Solution
The fourth proportional to 239,371.09, 330,317.09 and 131,935.21 is: 182,062.31
Step by Step Solution
- Step 1: Write the proportion equation
239,371.09 : 330,317.09 = 131,935.21 : x - Step 2: Convert to fraction form
239,371.09/330,317.09 = 131,935.21/x - Step 3: Cross multiply
239,371.09x = 330,317.09 × 131,935.21 - Step 4: Simplify right side
239,371.09x = 43,580,453,976.06 - Step 5: Solve for x
x = 43,580,453,976.06/239,371.09 - Step 6: Final answer
x = 182,062.31
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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.