Finding the Fourth Proportional to 237.99, 357.21 and 129.63
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Solution
The fourth proportional to 237.99, 357.21 and 129.63 is: 194.57
Step by Step Solution
- Step 1: Write the proportion equation
237.99 : 357.21 = 129.63 : x - Step 2: Convert to fraction form
237.99/357.21 = 129.63/x - Step 3: Cross multiply
237.99x = 357.21 × 129.63 - Step 4: Simplify right side
237.99x = 46,305.13 - Step 5: Solve for x
x = 46,305.13/237.99 - Step 6: Final answer
x = 194.57
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.