Finding the Fourth Proportional to 239,649.36, 330,754.89 and 142,865.09
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Solution
The fourth proportional to 239,649.36, 330,754.89 and 142,865.09 is: 197,176.94
Step by Step Solution
- Step 1: Write the proportion equation
239,649.36 : 330,754.89 = 142,865.09 : x - Step 2: Convert to fraction form
239,649.36/330,754.89 = 142,865.09/x - Step 3: Cross multiply
239,649.36x = 330,754.89 × 142,865.09 - Step 4: Simplify right side
239,649.36x = 47,253,327,127.79 - Step 5: Solve for x
x = 47,253,327,127.79/239,649.36 - Step 6: Final answer
x = 197,176.94
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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.