Finding the Fourth Proportional to 239,205.29, 330,080.58 and 137,239.15
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Solution
The fourth proportional to 239,205.29, 330,080.58 and 137,239.15 is: 189,376.99
Step by Step Solution
- Step 1: Write the proportion equation
239,205.29 : 330,080.58 = 137,239.15 : x - Step 2: Convert to fraction form
239,205.29/330,080.58 = 137,239.15/x - Step 3: Cross multiply
239,205.29x = 330,080.58 × 137,239.15 - Step 4: Simplify right side
239,205.29x = 45,299,978,230.71 - Step 5: Solve for x
x = 45,299,978,230.71/239,205.29 - Step 6: Final answer
x = 189,376.99
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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.