Finding the Fourth Proportional to 239.81, 358.83 and 207.68
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Solution
The fourth proportional to 239.81, 358.83 and 207.68 is: 310.75
Step by Step Solution
- Step 1: Write the proportion equation
239.81 : 358.83 = 207.68 : x - Step 2: Convert to fraction form
239.81/358.83 = 207.68/x - Step 3: Cross multiply
239.81x = 358.83 × 207.68 - Step 4: Simplify right side
239.81x = 74,521.81 - Step 5: Solve for x
x = 74,521.81/239.81 - Step 6: Final answer
x = 310.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.