Finding the Fourth Proportional to 341.18, 511.80 and 135.80
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Solution
The fourth proportional to 341.18, 511.80 and 135.80 is: 203.71
Step by Step Solution
- Step 1: Write the proportion equation
341.18 : 511.80 = 135.80 : x - Step 2: Convert to fraction form
341.18/511.80 = 135.80/x - Step 3: Cross multiply
341.18x = 511.80 × 135.80 - Step 4: Simplify right side
341.18x = 69,502.44 - Step 5: Solve for x
x = 69,502.44/341.18 - Step 6: Final answer
x = 203.71
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.