Finding the Fourth Proportional to 319.13, 478.23 and 232.08
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Solution
The fourth proportional to 319.13, 478.23 and 232.08 is: 347.79
Step by Step Solution
- Step 1: Write the proportion equation
319.13 : 478.23 = 232.08 : x - Step 2: Convert to fraction form
319.13/478.23 = 232.08/x - Step 3: Cross multiply
319.13x = 478.23 × 232.08 - Step 4: Simplify right side
319.13x = 110,987.62 - Step 5: Solve for x
x = 110,987.62/319.13 - Step 6: Final answer
x = 347.79
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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.