Finding the Fourth Proportional to 370.40, 511.18 and 239.79
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Solution
The fourth proportional to 370.40, 511.18 and 239.79 is: 330.93
Step by Step Solution
- Step 1: Write the proportion equation
370.40 : 511.18 = 239.79 : x - Step 2: Convert to fraction form
370.40/511.18 = 239.79/x - Step 3: Cross multiply
370.40x = 511.18 × 239.79 - Step 4: Simplify right side
370.40x = 122,575.19 - Step 5: Solve for x
x = 122,575.19/370.40 - Step 6: Final answer
x = 330.93
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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.