Finding the Fourth Proportional to 317,972.21, 438,780.99 and 182,007.23
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Solution
The fourth proportional to 317,972.21, 438,780.99 and 182,007.23 is: 251,158.15
Step by Step Solution
- Step 1: Write the proportion equation
317,972.21 : 438,780.99 = 182,007.23 : x - Step 2: Convert to fraction form
317,972.21/438,780.99 = 182,007.23/x - Step 3: Cross multiply
317,972.21x = 438,780.99 × 182,007.23 - Step 4: Simplify right side
317,972.21x = 79,861,310,372.65 - Step 5: Solve for x
x = 79,861,310,372.65/317,972.21 - Step 6: Final answer
x = 251,158.15
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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.