Finding the Fourth Proportional to 347.79, 523.36 and 286.54
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Solution
The fourth proportional to 347.79, 523.36 and 286.54 is: 431.18
Step by Step Solution
- Step 1: Write the proportion equation
347.79 : 523.36 = 286.54 : x - Step 2: Convert to fraction form
347.79/523.36 = 286.54/x - Step 3: Cross multiply
347.79x = 523.36 × 286.54 - Step 4: Simplify right side
347.79x = 149,960.24 - Step 5: Solve for x
x = 149,960.24/347.79 - Step 6: Final answer
x = 431.18
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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.