Finding the Fourth Proportional to 239.96, 330.96 and 203.06
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Solution
The fourth proportional to 239.96, 330.96 and 203.06 is: 280.07
Step by Step Solution
- Step 1: Write the proportion equation
239.96 : 330.96 = 203.06 : x - Step 2: Convert to fraction form
239.96/330.96 = 203.06/x - Step 3: Cross multiply
239.96x = 330.96 × 203.06 - Step 4: Simplify right side
239.96x = 67,204.74 - Step 5: Solve for x
x = 67,204.74/239.96 - Step 6: Final answer
x = 280.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.