Finding the Fourth Proportional to 341.18, 511.78 and 84.68
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Solution
The fourth proportional to 341.18, 511.78 and 84.68 is: 127.02
Step by Step Solution
- Step 1: Write the proportion equation
341.18 : 511.78 = 84.68 : x - Step 2: Convert to fraction form
341.18/511.78 = 84.68/x - Step 3: Cross multiply
341.18x = 511.78 × 84.68 - Step 4: Simplify right side
341.18x = 43,337.53 - Step 5: Solve for x
x = 43,337.53/341.18 - Step 6: Final answer
x = 127.02
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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.