Finding the Fourth Proportional to 280,609.47, 386,453.84 and 262,599.12
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Solution
The fourth proportional to 280,609.47, 386,453.84 and 262,599.12 is: 361,650.08
Step by Step Solution
- Step 1: Write the proportion equation
280,609.47 : 386,453.84 = 262,599.12 : x - Step 2: Convert to fraction form
280,609.47/386,453.84 = 262,599.12/x - Step 3: Cross multiply
280,609.47x = 386,453.84 × 262,599.12 - Step 4: Simplify right side
280,609.47x = 101,482,436,991.63 - Step 5: Solve for x
x = 101,482,436,991.63/280,609.47 - Step 6: Final answer
x = 361,650.08
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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.