Finding the Fourth Proportional to 317,525.05, 438,183.03 and 174,287.53
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Solution
The fourth proportional to 317,525.05, 438,183.03 and 174,287.53 is: 240,515.95
Step by Step Solution
- Step 1: Write the proportion equation
317,525.05 : 438,183.03 = 174,287.53 : x - Step 2: Convert to fraction form
317,525.05/438,183.03 = 174,287.53/x - Step 3: Cross multiply
317,525.05x = 438,183.03 × 174,287.53 - Step 4: Simplify right side
317,525.05x = 76,369,837,986.62 - Step 5: Solve for x
x = 76,369,837,986.62/317,525.05 - Step 6: Final answer
x = 240,515.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.