Finding the Fourth Proportional to 143,311.86, 214,998.71 and 43,480.09
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Solution
The fourth proportional to 143,311.86, 214,998.71 and 43,480.09 is: 65,229.52
Step by Step Solution
- Step 1: Write the proportion equation
143,311.86 : 214,998.71 = 43,480.09 : x - Step 2: Convert to fraction form
143,311.86/214,998.71 = 43,480.09/x - Step 3: Cross multiply
143,311.86x = 214,998.71 × 43,480.09 - Step 4: Simplify right side
143,311.86x = 9,348,163,312.03 - Step 5: Solve for x
x = 9,348,163,312.03/143,311.86 - Step 6: Final answer
x = 65,229.52
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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.