Finding the Fourth Proportional to 208,801.30, 313,201.95 and 155,657.20
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Solution
The fourth proportional to 208,801.30, 313,201.95 and 155,657.20 is: 233,485.80
Step by Step Solution
- Step 1: Write the proportion equation
208,801.30 : 313,201.95 = 155,657.20 : x - Step 2: Convert to fraction form
208,801.30/313,201.95 = 155,657.20/x - Step 3: Cross multiply
208,801.30x = 313,201.95 × 155,657.20 - Step 4: Simplify right side
208,801.30x = 48,752,138,571.54 - Step 5: Solve for x
x = 48,752,138,571.54/208,801.30 - Step 6: Final answer
x = 233,485.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.