Finding the Fourth Proportional to 239.65, 358.79 and 177.91
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Solution
The fourth proportional to 239.65, 358.79 and 177.91 is: 266.35
Step by Step Solution
- Step 1: Write the proportion equation
239.65 : 358.79 = 177.91 : x - Step 2: Convert to fraction form
239.65/358.79 = 177.91/x - Step 3: Cross multiply
239.65x = 358.79 × 177.91 - Step 4: Simplify right side
239.65x = 63,830.54 - Step 5: Solve for x
x = 63,830.54/239.65 - Step 6: Final answer
x = 266.35
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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.