Finding the Fourth Proportional to 340.62, 511.10 and 135.14
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Solution
The fourth proportional to 340.62, 511.10 and 135.14 is: 202.78
Step by Step Solution
- Step 1: Write the proportion equation
340.62 : 511.10 = 135.14 : x - Step 2: Convert to fraction form
340.62/511.10 = 135.14/x - Step 3: Cross multiply
340.62x = 511.10 × 135.14 - Step 4: Simplify right side
340.62x = 69,070.05 - Step 5: Solve for x
x = 69,070.05/340.62 - Step 6: Final answer
x = 202.78
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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.