Finding the Fourth Proportional to 482.20, 665.44 and 282.99
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Solution
The fourth proportional to 482.20, 665.44 and 282.99 is: 390.53
Step by Step Solution
- Step 1: Write the proportion equation
482.20 : 665.44 = 282.99 : x - Step 2: Convert to fraction form
482.20/665.44 = 282.99/x - Step 3: Cross multiply
482.20x = 665.44 × 282.99 - Step 4: Simplify right side
482.20x = 188,312.16 - Step 5: Solve for x
x = 188,312.16/482.20 - Step 6: Final answer
x = 390.53
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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.