Finding the Fourth Proportional to 338.65, 467.18 and 207.63
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Solution
The fourth proportional to 338.65, 467.18 and 207.63 is: 286.43
Step by Step Solution
- Step 1: Write the proportion equation
338.65 : 467.18 = 207.63 : x - Step 2: Convert to fraction form
338.65/467.18 = 207.63/x - Step 3: Cross multiply
338.65x = 467.18 × 207.63 - Step 4: Simplify right side
338.65x = 97,000.58 - Step 5: Solve for x
x = 97,000.58/338.65 - Step 6: Final answer
x = 286.43
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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.