Finding the Fourth Proportional to 239,419.36, 330,396.06 and 137,447.26
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Solution
The fourth proportional to 239,419.36, 330,396.06 and 137,447.26 is: 189,675.69
Step by Step Solution
- Step 1: Write the proportion equation
239,419.36 : 330,396.06 = 137,447.26 : x - Step 2: Convert to fraction form
239,419.36/330,396.06 = 137,447.26/x - Step 3: Cross multiply
239,419.36x = 330,396.06 × 137,447.26 - Step 4: Simplify right side
239,419.36x = 45,412,033,161.80 - Step 5: Solve for x
x = 45,412,033,161.80/239,419.36 - Step 6: Final answer
x = 189,675.69
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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.