Finding the Fourth Proportional to 239.18, 358.74 and 92.93
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Solution
The fourth proportional to 239.18, 358.74 and 92.93 is: 139.38
Step by Step Solution
- Step 1: Write the proportion equation
239.18 : 358.74 = 92.93 : x - Step 2: Convert to fraction form
239.18/358.74 = 92.93/x - Step 3: Cross multiply
239.18x = 358.74 × 92.93 - Step 4: Simplify right side
239.18x = 33,335.91 - Step 5: Solve for x
x = 33,335.91/239.18 - Step 6: Final answer
x = 139.38
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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.