Finding the Fourth Proportional to 439.62, 606.66 and 252.99
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Solution
The fourth proportional to 439.62, 606.66 and 252.99 is: 349.12
Step by Step Solution
- Step 1: Write the proportion equation
439.62 : 606.66 = 252.99 : x - Step 2: Convert to fraction form
439.62/606.66 = 252.99/x - Step 3: Cross multiply
439.62x = 606.66 × 252.99 - Step 4: Simplify right side
439.62x = 153,478.91 - Step 5: Solve for x
x = 153,478.91/439.62 - Step 6: Final answer
x = 349.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.