Finding the Fourth Proportional to 403.67, 557.18 and 292.94
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Solution
The fourth proportional to 403.67, 557.18 and 292.94 is: 404.34
Step by Step Solution
- Step 1: Write the proportion equation
403.67 : 557.18 = 292.94 : x - Step 2: Convert to fraction form
403.67/557.18 = 292.94/x - Step 3: Cross multiply
403.67x = 557.18 × 292.94 - Step 4: Simplify right side
403.67x = 163,219.25 - Step 5: Solve for x
x = 163,219.25/403.67 - 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.