Finding the Fourth Proportional to 130.19, 195.21 and 44.63
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Solution
The fourth proportional to 130.19, 195.21 and 44.63 is: 66.91
Step by Step Solution
- Step 1: Write the proportion equation
130.19 : 195.21 = 44.63 : x - Step 2: Convert to fraction form
130.19/195.21 = 44.63/x - Step 3: Cross multiply
130.19x = 195.21 × 44.63 - Step 4: Simplify right side
130.19x = 8,711.25 - Step 5: Solve for x
x = 8,711.25/130.19 - Step 6: Final answer
x = 66.91
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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.