Finding the Fourth Proportional to 289,177.08, 433,716.40 and 78,765.81
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Solution
The fourth proportional to 289,177.08, 433,716.40 and 78,765.81 is: 118,135.31
Step by Step Solution
- Step 1: Write the proportion equation
289,177.08 : 433,716.40 = 78,765.81 : x - Step 2: Convert to fraction form
289,177.08/433,716.40 = 78,765.81/x - Step 3: Cross multiply
289,177.08x = 433,716.40 × 78,765.81 - Step 4: Simplify right side
289,177.08x = 34,162,023,556.28 - Step 5: Solve for x
x = 34,162,023,556.28/289,177.08 - Step 6: Final answer
x = 118,135.31
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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.