Finding the Fourth Proportional to 492.14, 679.18 and 292.99
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Solution
The fourth proportional to 492.14, 679.18 and 292.99 is: 404.34
Step by Step Solution
- Step 1: Write the proportion equation
492.14 : 679.18 = 292.99 : x - Step 2: Convert to fraction form
492.14/679.18 = 292.99/x - Step 3: Cross multiply
492.14x = 679.18 × 292.99 - Step 4: Simplify right side
492.14x = 198,989.55 - Step 5: Solve for x
x = 198,989.55/492.14 - Step 6: Final answer
x = 404.34
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.