Finding the Fourth Proportional to 208,122.04, 287,332.16 and 136,627.12
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Solution
The fourth proportional to 208,122.04, 287,332.16 and 136,627.12 is: 188,626.66
Step by Step Solution
- Step 1: Write the proportion equation
208,122.04 : 287,332.16 = 136,627.12 : x - Step 2: Convert to fraction form
208,122.04/287,332.16 = 136,627.12/x - Step 3: Cross multiply
208,122.04x = 287,332.16 × 136,627.12 - Step 4: Simplify right side
208,122.04x = 39,257,365,504.18 - Step 5: Solve for x
x = 39,257,365,504.18/208,122.04 - Step 6: Final answer
x = 188,626.66
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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.