Finding the Fourth Proportional to 282,150.68, 389,392.12 and 154,850.88
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Solution
The fourth proportional to 282,150.68, 389,392.12 and 154,850.88 is: 213,707.49
Step by Step Solution
- Step 1: Write the proportion equation
282,150.68 : 389,392.12 = 154,850.88 : x - Step 2: Convert to fraction form
282,150.68/389,392.12 = 154,850.88/x - Step 3: Cross multiply
282,150.68x = 389,392.12 × 154,850.88 - Step 4: Simplify right side
282,150.68x = 60,297,712,447.07 - Step 5: Solve for x
x = 60,297,712,447.07/282,150.68 - Step 6: Final answer
x = 213,707.49
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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.