Finding the Fourth Proportional to 239,480.27, 330,504.95 and 137,519.09
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Solution
The fourth proportional to 239,480.27, 330,504.95 and 137,519.09 is: 189,789.08
Step by Step Solution
- Step 1: Write the proportion equation
239,480.27 : 330,504.95 = 137,519.09 : x - Step 2: Convert to fraction form
239,480.27/330,504.95 = 137,519.09/x - Step 3: Cross multiply
239,480.27x = 330,504.95 × 137,519.09 - Step 4: Simplify right side
239,480.27x = 45,450,739,964.50 - Step 5: Solve for x
x = 45,450,739,964.50/239,480.27 - Step 6: Final answer
x = 189,789.08
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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.