Finding the Fourth Proportional to 260,149.19, 390,217.70 and 119,907.81
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Solution
The fourth proportional to 260,149.19, 390,217.70 and 119,907.81 is: 179,858.91
Step by Step Solution
- Step 1: Write the proportion equation
260,149.19 : 390,217.70 = 119,907.81 : x - Step 2: Convert to fraction form
260,149.19/390,217.70 = 119,907.81/x - Step 3: Cross multiply
260,149.19x = 390,217.70 × 119,907.81 - Step 4: Simplify right side
260,149.19x = 46,790,149,230.70 - Step 5: Solve for x
x = 46,790,149,230.70/260,149.19 - Step 6: Final answer
x = 179,858.91
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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.