Finding the Fourth Proportional to 403.53, 556.95 and 292.98
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Solution
The fourth proportional to 403.53, 556.95 and 292.98 is: 404.37
Step by Step Solution
- Step 1: Write the proportion equation
403.53 : 556.95 = 292.98 : x - Step 2: Convert to fraction form
403.53/556.95 = 292.98/x - Step 3: Cross multiply
403.53x = 556.95 × 292.98 - Step 4: Simplify right side
403.53x = 163,175.21 - Step 5: Solve for x
x = 163,175.21/403.53 - Step 6: Final answer
x = 404.37
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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.