Finding the Fourth Proportional to 239.19, 358.83 and 102.21
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Solution
The fourth proportional to 239.19, 358.83 and 102.21 is: 153.33
Step by Step Solution
- Step 1: Write the proportion equation
239.19 : 358.83 = 102.21 : x - Step 2: Convert to fraction form
239.19/358.83 = 102.21/x - Step 3: Cross multiply
239.19x = 358.83 × 102.21 - Step 4: Simplify right side
239.19x = 36,676.01 - Step 5: Solve for x
x = 36,676.01/239.19 - Step 6: Final answer
x = 153.33
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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.