Finding the Fourth Proportional to 208,152.71, 312,234.99 and 65,998.62
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Solution
The fourth proportional to 208,152.71, 312,234.99 and 65,998.62 is: 98,999.81
Step by Step Solution
- Step 1: Write the proportion equation
208,152.71 : 312,234.99 = 65,998.62 : x - Step 2: Convert to fraction form
208,152.71/312,234.99 = 65,998.62/x - Step 3: Cross multiply
208,152.71x = 312,234.99 × 65,998.62 - Step 4: Simplify right side
208,152.71x = 20,607,078,763.51 - Step 5: Solve for x
x = 20,607,078,763.51/208,152.71 - Step 6: Final answer
x = 98,999.81
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1.5x scale
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.