Finding the Fourth Proportional to 396.41, 547.08 and 322.52
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Solution
The fourth proportional to 396.41, 547.08 and 322.52 is: 445.11
Step by Step Solution
- Step 1: Write the proportion equation
396.41 : 547.08 = 322.52 : x - Step 2: Convert to fraction form
396.41/547.08 = 322.52/x - Step 3: Cross multiply
396.41x = 547.08 × 322.52 - Step 4: Simplify right side
396.41x = 176,444.24 - Step 5: Solve for x
x = 176,444.24/396.41 - Step 6: Final answer
x = 445.11
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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.