Finding the Fourth Proportional to 386.10, 532.08 and 303
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Solution
The fourth proportional to 386.10, 532.08 and 303 is: 417.56
Step by Step Solution
- Step 1: Write the proportion equation
386.10 : 532.08 = 303 : x - Step 2: Convert to fraction form
386.10/532.08 = 303/x - Step 3: Cross multiply
386.10x = 532.08 × 303 - Step 4: Simplify right side
386.10x = 161,220.24 - Step 5: Solve for x
x = 161,220.24/386.10 - Step 6: Final answer
x = 417.56
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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.