Finding the Fourth Proportional to 239,139.12, 330,026.97 and 131,709.13
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Solution
The fourth proportional to 239,139.12, 330,026.97 and 131,709.13 is: 181,766.84
Step by Step Solution
- Step 1: Write the proportion equation
239,139.12 : 330,026.97 = 131,709.13 : x - Step 2: Convert to fraction form
239,139.12/330,026.97 = 131,709.13/x - Step 3: Cross multiply
239,139.12x = 330,026.97 × 131,709.13 - Step 4: Simplify right side
239,139.12x = 43,467,562,786.56 - Step 5: Solve for x
x = 43,467,562,786.56/239,139.12 - Step 6: Final answer
x = 181,766.84
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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.