Finding the Fourth Proportional to 280,879.27, 421,277.44 and 103,344.99
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Solution
The fourth proportional to 280,879.27, 421,277.44 and 103,344.99 is: 155,002.23
Step by Step Solution
- Step 1: Write the proportion equation
280,879.27 : 421,277.44 = 103,344.99 : x - Step 2: Convert to fraction form
280,879.27/421,277.44 = 103,344.99/x - Step 3: Cross multiply
280,879.27x = 421,277.44 × 103,344.99 - Step 4: Simplify right side
280,879.27x = 43,536,912,824.03 - Step 5: Solve for x
x = 43,536,912,824.03/280,879.27 - Step 6: Final answer
x = 155,002.23
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1.5x scale
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.