Finding the Fourth Proportional to 340.91, 511.07 and 135.38
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Solution
The fourth proportional to 340.91, 511.07 and 135.38 is: 202.94
Step by Step Solution
- Step 1: Write the proportion equation
340.91 : 511.07 = 135.38 : x - Step 2: Convert to fraction form
340.91/511.07 = 135.38/x - Step 3: Cross multiply
340.91x = 511.07 × 135.38 - Step 4: Simplify right side
340.91x = 69,185.42 - Step 5: Solve for x
x = 69,185.42/340.91 - Step 6: Final answer
x = 202.94
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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.