Finding the Fourth Proportional to 370.60, 511.41 and 239.68
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Solution
The fourth proportional to 370.60, 511.41 and 239.68 is: 330.75
Step by Step Solution
- Step 1: Write the proportion equation
370.60 : 511.41 = 239.68 : x - Step 2: Convert to fraction form
370.60/511.41 = 239.68/x - Step 3: Cross multiply
370.60x = 511.41 × 239.68 - Step 4: Simplify right side
370.60x = 122,574.75 - Step 5: Solve for x
x = 122,574.75/370.60 - Step 6: Final answer
x = 330.75
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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.