Finding the Fourth Proportional to 400.68, 552.99 and 253.26
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Solution
The fourth proportional to 400.68, 552.99 and 253.26 is: 349.53
Step by Step Solution
- Step 1: Write the proportion equation
400.68 : 552.99 = 253.26 : x - Step 2: Convert to fraction form
400.68/552.99 = 253.26/x - Step 3: Cross multiply
400.68x = 552.99 × 253.26 - Step 4: Simplify right side
400.68x = 140,050.25 - Step 5: Solve for x
x = 140,050.25/400.68 - Step 6: Final answer
x = 349.53
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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.