Finding the Fourth Proportional to 239,289.63, 330,218.26 and 130,393.77
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Solution
The fourth proportional to 239,289.63, 330,218.26 and 130,393.77 is: 179,942.62
Step by Step Solution
- Step 1: Write the proportion equation
239,289.63 : 330,218.26 = 130,393.77 : x - Step 2: Convert to fraction form
239,289.63/330,218.26 = 130,393.77/x - Step 3: Cross multiply
239,289.63x = 330,218.26 × 130,393.77 - Step 4: Simplify right side
239,289.63x = 43,058,403,844.24 - Step 5: Solve for x
x = 43,058,403,844.24/239,289.63 - Step 6: Final answer
x = 179,942.62
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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.