Finding the Fourth Proportional to 341.28, 511.55 and 135.74
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Solution
The fourth proportional to 341.28, 511.55 and 135.74 is: 203.47
Step by Step Solution
- Step 1: Write the proportion equation
341.28 : 511.55 = 135.74 : x - Step 2: Convert to fraction form
341.28/511.55 = 135.74/x - Step 3: Cross multiply
341.28x = 511.55 × 135.74 - Step 4: Simplify right side
341.28x = 69,438.91 - Step 5: Solve for x
x = 69,438.91/341.28 - Step 6: Final answer
x = 203.47
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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.