Finding the Fourth Proportional to 282,000.07, 389,157.98 and 154,674.75
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Solution
The fourth proportional to 282,000.07, 389,157.98 and 154,674.75 is: 213,449.99
Step by Step Solution
- Step 1: Write the proportion equation
282,000.07 : 389,157.98 = 154,674.75 : x - Step 2: Convert to fraction form
282,000.07/389,157.98 = 154,674.75/x - Step 3: Cross multiply
282,000.07x = 389,157.98 × 154,674.75 - Step 4: Simplify right side
282,000.07x = 60,192,913,267.01 - Step 5: Solve for x
x = 60,192,913,267.01/282,000.07 - Step 6: Final answer
x = 213,449.99
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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.