Finding the Fourth Proportional to 456.49, 629.91 and 259.99
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Solution
The fourth proportional to 456.49, 629.91 and 259.99 is: 358.76
Step by Step Solution
- Step 1: Write the proportion equation
456.49 : 629.91 = 259.99 : x - Step 2: Convert to fraction form
456.49/629.91 = 259.99/x - Step 3: Cross multiply
456.49x = 629.91 × 259.99 - Step 4: Simplify right side
456.49x = 163,770.30 - Step 5: Solve for x
x = 163,770.30/456.49 - Step 6: Final answer
x = 358.76
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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.