Finding the Fourth Proportional to 313.08, 469.66 and 107.68
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Solution
The fourth proportional to 313.08, 469.66 and 107.68 is: 161.53
Step by Step Solution
- Step 1: Write the proportion equation
313.08 : 469.66 = 107.68 : x - Step 2: Convert to fraction form
313.08/469.66 = 107.68/x - Step 3: Cross multiply
313.08x = 469.66 × 107.68 - Step 4: Simplify right side
313.08x = 50,572.99 - Step 5: Solve for x
x = 50,572.99/313.08 - Step 6: Final answer
x = 161.53
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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.