Finding the Fourth Proportional to 301,161.40, 451,577.08 and 138,879.28
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Solution
The fourth proportional to 301,161.40, 451,577.08 and 138,879.28 is: 208,242.82
Step by Step Solution
- Step 1: Write the proportion equation
301,161.40 : 451,577.08 = 138,879.28 : x - Step 2: Convert to fraction form
301,161.40/451,577.08 = 138,879.28/x - Step 3: Cross multiply
301,161.40x = 451,577.08 × 138,879.28 - Step 4: Simplify right side
301,161.40x = 62,714,699,734.90 - Step 5: Solve for x
x = 62,714,699,734.90/301,161.40 - Step 6: Final answer
x = 208,242.82
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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.