Finding the Fourth Proportional to 239.09, 358.70 and 130.95
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Solution
The fourth proportional to 239.09, 358.70 and 130.95 is: 196.46
Step by Step Solution
- Step 1: Write the proportion equation
239.09 : 358.70 = 130.95 : x - Step 2: Convert to fraction form
239.09/358.70 = 130.95/x - Step 3: Cross multiply
239.09x = 358.70 × 130.95 - Step 4: Simplify right side
239.09x = 46,971.11 - Step 5: Solve for x
x = 46,971.11/239.09 - Step 6: Final answer
x = 196.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.