Finding the Fourth Proportional to 130.25, 195.29 and 48.99
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Solution
The fourth proportional to 130.25, 195.29 and 48.99 is: 73.45
Step by Step Solution
- Step 1: Write the proportion equation
130.25 : 195.29 = 48.99 : x - Step 2: Convert to fraction form
130.25/195.29 = 48.99/x - Step 3: Cross multiply
130.25x = 195.29 × 48.99 - Step 4: Simplify right side
130.25x = 9,567.01 - Step 5: Solve for x
x = 9,567.01/130.25 - Step 6: Final answer
x = 73.45
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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.