Finding the Fourth Proportional to 370.42, 511.08 and 239.48
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Solution
The fourth proportional to 370.42, 511.08 and 239.48 is: 330.42
Step by Step Solution
- Step 1: Write the proportion equation
370.42 : 511.08 = 239.48 : x - Step 2: Convert to fraction form
370.42/511.08 = 239.48/x - Step 3: Cross multiply
370.42x = 511.08 × 239.48 - Step 4: Simplify right side
370.42x = 122,393.44 - Step 5: Solve for x
x = 122,393.44/370.42 - Step 6: Final answer
x = 330.42
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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.