Finding the Fourth Proportional to 403.60, 604.99 and 159.79
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Solution
The fourth proportional to 403.60, 604.99 and 159.79 is: 239.52
Step by Step Solution
- Step 1: Write the proportion equation
403.60 : 604.99 = 159.79 : x - Step 2: Convert to fraction form
403.60/604.99 = 159.79/x - Step 3: Cross multiply
403.60x = 604.99 × 159.79 - Step 4: Simplify right side
403.60x = 96,670.55 - Step 5: Solve for x
x = 96,670.55/403.60 - Step 6: Final answer
x = 239.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.