Finding the Fourth Proportional to 442.99, 609.55 and 372.79
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Solution
The fourth proportional to 442.99, 609.55 and 372.79 is: 512.96
Step by Step Solution
- Step 1: Write the proportion equation
442.99 : 609.55 = 372.79 : x - Step 2: Convert to fraction form
442.99/609.55 = 372.79/x - Step 3: Cross multiply
442.99x = 609.55 × 372.79 - Step 4: Simplify right side
442.99x = 227,234.14 - Step 5: Solve for x
x = 227,234.14/442.99 - Step 6: Final answer
x = 512.96
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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.