Finding the Fourth Proportional to 347.63, 479.35 and 230.99
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Solution
The fourth proportional to 347.63, 479.35 and 230.99 is: 318.51
Step by Step Solution
- Step 1: Write the proportion equation
347.63 : 479.35 = 230.99 : x - Step 2: Convert to fraction form
347.63/479.35 = 230.99/x - Step 3: Cross multiply
347.63x = 479.35 × 230.99 - Step 4: Simplify right side
347.63x = 110,725.06 - Step 5: Solve for x
x = 110,725.06/347.63 - Step 6: Final answer
x = 318.51
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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.