Finding the Fourth Proportional to 287,581.27, 431,372.99 and 87,900.88
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Solution
The fourth proportional to 287,581.27, 431,372.99 and 87,900.88 is: 131,851.66
Step by Step Solution
- Step 1: Write the proportion equation
287,581.27 : 431,372.99 = 87,900.88 : x - Step 2: Convert to fraction form
287,581.27/431,372.99 = 87,900.88/x - Step 3: Cross multiply
287,581.27x = 431,372.99 × 87,900.88 - Step 4: Simplify right side
287,581.27x = 37,918,067,199.23 - Step 5: Solve for x
x = 37,918,067,199.23/287,581.27 - Step 6: Final answer
x = 131,851.66
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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.