Finding the Fourth Proportional to 239,810.99, 330,939.22 and 132,381.09
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Solution
The fourth proportional to 239,810.99, 330,939.22 and 132,381.09 is: 182,685.93
Step by Step Solution
- Step 1: Write the proportion equation
239,810.99 : 330,939.22 = 132,381.09 : x - Step 2: Convert to fraction form
239,810.99/330,939.22 = 132,381.09/x - Step 3: Cross multiply
239,810.99x = 330,939.22 × 132,381.09 - Step 4: Simplify right side
239,810.99x = 43,810,094,667.35 - Step 5: Solve for x
x = 43,810,094,667.35/239,810.99 - Step 6: Final answer
x = 182,685.93
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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.