Finding the Fourth Proportional to 482.05, 665.67 and 307.70
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Solution
The fourth proportional to 482.05, 665.67 and 307.70 is: 424.90
Step by Step Solution
- Step 1: Write the proportion equation
482.05 : 665.67 = 307.70 : x - Step 2: Convert to fraction form
482.05/665.67 = 307.70/x - Step 3: Cross multiply
482.05x = 665.67 × 307.70 - Step 4: Simplify right side
482.05x = 204,825.25 - Step 5: Solve for x
x = 204,825.25/482.05 - Step 6: Final answer
x = 424.90
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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.