Finding the Fourth Proportional to 208,312.11, 312,484.36 and 68,084.91
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Solution
The fourth proportional to 208,312.11, 312,484.36 and 68,084.91 is: 102,132.66
Step by Step Solution
- Step 1: Write the proportion equation
208,312.11 : 312,484.36 = 68,084.91 : x - Step 2: Convert to fraction form
208,312.11/312,484.36 = 68,084.91/x - Step 3: Cross multiply
208,312.11x = 312,484.36 × 68,084.91 - Step 4: Simplify right side
208,312.11x = 21,275,469,527.01 - Step 5: Solve for x
x = 21,275,469,527.01/208,312.11 - Step 6: Final answer
x = 102,132.66
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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.