Finding the Fourth Proportional to 239.90, 358.26 and 207.46
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Solution
The fourth proportional to 239.90, 358.26 and 207.46 is: 309.82
Step by Step Solution
- Step 1: Write the proportion equation
239.90 : 358.26 = 207.46 : x - Step 2: Convert to fraction form
239.90/358.26 = 207.46/x - Step 3: Cross multiply
239.90x = 358.26 × 207.46 - Step 4: Simplify right side
239.90x = 74,324.62 - Step 5: Solve for x
x = 74,324.62/239.90 - Step 6: Final answer
x = 309.82
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.