Finding the Fourth Proportional to 415.60, 623.44 and 155.68
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Solution
The fourth proportional to 415.60, 623.44 and 155.68 is: 233.53
Step by Step Solution
- Step 1: Write the proportion equation
415.60 : 623.44 = 155.68 : x - Step 2: Convert to fraction form
415.60/623.44 = 155.68/x - Step 3: Cross multiply
415.60x = 623.44 × 155.68 - Step 4: Simplify right side
415.60x = 97,057.14 - Step 5: Solve for x
x = 97,057.14/415.60 - Step 6: Final answer
x = 233.53
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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.