Finding the Fourth Proportional to 208,125.08, 287,212.61 and 112,631.80
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Solution
The fourth proportional to 208,125.08, 287,212.61 and 112,631.80 is: 155,431.88
Step by Step Solution
- Step 1: Write the proportion equation
208,125.08 : 287,212.61 = 112,631.80 : x - Step 2: Convert to fraction form
208,125.08/287,212.61 = 112,631.80/x - Step 3: Cross multiply
208,125.08x = 287,212.61 × 112,631.80 - Step 4: Simplify right side
208,125.08x = 32,349,273,247.00 - Step 5: Solve for x
x = 32,349,273,247.00/208,125.08 - Step 6: Final answer
x = 155,431.88
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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.