Finding the Fourth Proportional to 421.65, 632.53 and 174.99
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Solution
The fourth proportional to 421.65, 632.53 and 174.99 is: 262.50
Step by Step Solution
- Step 1: Write the proportion equation
421.65 : 632.53 = 174.99 : x - Step 2: Convert to fraction form
421.65/632.53 = 174.99/x - Step 3: Cross multiply
421.65x = 632.53 × 174.99 - Step 4: Simplify right side
421.65x = 110,683.26 - Step 5: Solve for x
x = 110,683.26/421.65 - Step 6: Final answer
x = 262.50
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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.