Finding the Fourth Proportional to 203,551.09, 280,904.99 and 112,904.09
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Solution
The fourth proportional to 203,551.09, 280,904.99 and 112,904.09 is: 155,810.13
Step by Step Solution
- Step 1: Write the proportion equation
203,551.09 : 280,904.99 = 112,904.09 : x - Step 2: Convert to fraction form
203,551.09/280,904.99 = 112,904.09/x - Step 3: Cross multiply
203,551.09x = 280,904.99 × 112,904.09 - Step 4: Simplify right side
203,551.09x = 31,715,322,272.41 - Step 5: Solve for x
x = 31,715,322,272.41/203,551.09 - Step 6: Final answer
x = 155,810.13
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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.