Finding the Fourth Proportional to 208,629.03, 287,908.14 and 113,135.70
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Solution
The fourth proportional to 208,629.03, 287,908.14 and 113,135.70 is: 156,127.31
Step by Step Solution
- Step 1: Write the proportion equation
208,629.03 : 287,908.14 = 113,135.70 : x - Step 2: Convert to fraction form
208,629.03/287,908.14 = 113,135.70/x - Step 3: Cross multiply
208,629.03x = 287,908.14 × 113,135.70 - Step 4: Simplify right side
208,629.03x = 32,572,688,388.92 - Step 5: Solve for x
x = 32,572,688,388.92/208,629.03 - Step 6: Final answer
x = 156,127.31
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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.