Finding the Fourth Proportional to 239.25, 358.87 and 136.31
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Solution
The fourth proportional to 239.25, 358.87 and 136.31 is: 204.47
Step by Step Solution
- Step 1: Write the proportion equation
239.25 : 358.87 = 136.31 : x - Step 2: Convert to fraction form
239.25/358.87 = 136.31/x - Step 3: Cross multiply
239.25x = 358.87 × 136.31 - Step 4: Simplify right side
239.25x = 48,918.24 - Step 5: Solve for x
x = 48,918.24/239.25 - Step 6: Final answer
x = 204.47
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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.