Finding the Fourth Proportional to 203,419.74, 280,735.80 and 112,804.08
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Solution
The fourth proportional to 203,419.74, 280,735.80 and 112,804.08 is: 155,678.81
Step by Step Solution
- Step 1: Write the proportion equation
203,419.74 : 280,735.80 = 112,804.08 : x - Step 2: Convert to fraction form
203,419.74/280,735.80 = 112,804.08/x - Step 3: Cross multiply
203,419.74x = 280,735.80 × 112,804.08 - Step 4: Simplify right side
203,419.74x = 31,668,143,642.06 - Step 5: Solve for x
x = 31,668,143,642.06/203,419.74 - Step 6: Final answer
x = 155,678.81
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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.