Finding the Fourth Proportional to 260.29, 358.99 and 172.99
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Solution
The fourth proportional to 260.29, 358.99 and 172.99 is: 238.59
Step by Step Solution
- Step 1: Write the proportion equation
260.29 : 358.99 = 172.99 : x - Step 2: Convert to fraction form
260.29/358.99 = 172.99/x - Step 3: Cross multiply
260.29x = 358.99 × 172.99 - Step 4: Simplify right side
260.29x = 62,101.68 - Step 5: Solve for x
x = 62,101.68/260.29 - Step 6: Final answer
x = 238.59
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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.