Finding the Fourth Proportional to 415.05, 622.68 and 155.06
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Solution
The fourth proportional to 415.05, 622.68 and 155.06 is: 232.63
Step by Step Solution
- Step 1: Write the proportion equation
415.05 : 622.68 = 155.06 : x - Step 2: Convert to fraction form
415.05/622.68 = 155.06/x - Step 3: Cross multiply
415.05x = 622.68 × 155.06 - Step 4: Simplify right side
415.05x = 96,551.99 - Step 5: Solve for x
x = 96,551.99/415.05 - Step 6: Final answer
x = 232.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.