Finding the Fourth Proportional to 259,848.20, 389,657.10 and 119,649.80
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Solution
The fourth proportional to 259,848.20, 389,657.10 and 119,649.80 is: 179,421.65
Step by Step Solution
- Step 1: Write the proportion equation
259,848.20 : 389,657.10 = 119,649.80 : x - Step 2: Convert to fraction form
259,848.20/389,657.10 = 119,649.80/x - Step 3: Cross multiply
259,848.20x = 389,657.10 × 119,649.80 - Step 4: Simplify right side
259,848.20x = 46,622,394,083.58 - Step 5: Solve for x
x = 46,622,394,083.58/259,848.20 - Step 6: Final answer
x = 179,421.65
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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.