Finding the Fourth Proportional to 259,765.81, 389,304.26 and 133,400.95
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Solution
The fourth proportional to 259,765.81, 389,304.26 and 133,400.95 is: 199,924.53
Step by Step Solution
- Step 1: Write the proportion equation
259,765.81 : 389,304.26 = 133,400.95 : x - Step 2: Convert to fraction form
259,765.81/389,304.26 = 133,400.95/x - Step 3: Cross multiply
259,765.81x = 389,304.26 × 133,400.95 - Step 4: Simplify right side
259,765.81x = 51,933,558,123.05 - Step 5: Solve for x
x = 51,933,558,123.05/259,765.81 - Step 6: Final answer
x = 199,924.53
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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.