Finding the Fourth Proportional to 397.20, 595.86 and 123.31
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Solution
The fourth proportional to 397.20, 595.86 and 123.31 is: 184.99
Step by Step Solution
- Step 1: Write the proportion equation
397.20 : 595.86 = 123.31 : x - Step 2: Convert to fraction form
397.20/595.86 = 123.31/x - Step 3: Cross multiply
397.20x = 595.86 × 123.31 - Step 4: Simplify right side
397.20x = 73,475.78 - Step 5: Solve for x
x = 73,475.78/397.20 - Step 6: Final answer
x = 184.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.