Finding the Fourth Proportional to 347.21, 478.96 and 207.26
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Solution
The fourth proportional to 347.21, 478.96 and 207.26 is: 285.91
Step by Step Solution
- Step 1: Write the proportion equation
347.21 : 478.96 = 207.26 : x - Step 2: Convert to fraction form
347.21/478.96 = 207.26/x - Step 3: Cross multiply
347.21x = 478.96 × 207.26 - Step 4: Simplify right side
347.21x = 99,269.25 - Step 5: Solve for x
x = 99,269.25/347.21 - Step 6: Final answer
x = 285.91
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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.