Finding the Fourth Proportional to 208,719.95, 313,125.28 and 68,473.31
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Solution
The fourth proportional to 208,719.95, 313,125.28 and 68,473.31 is: 102,724.84
Step by Step Solution
- Step 1: Write the proportion equation
208,719.95 : 313,125.28 = 68,473.31 : x - Step 2: Convert to fraction form
208,719.95/313,125.28 = 68,473.31/x - Step 3: Cross multiply
208,719.95x = 313,125.28 × 68,473.31 - Step 4: Simplify right side
208,719.95x = 21,440,722,629.47 - Step 5: Solve for x
x = 21,440,722,629.47/208,719.95 - Step 6: Final answer
x = 102,724.84
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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.