Finding the Fourth Proportional to 305,907.87, 458,704.18 and 137,283.63
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Solution
The fourth proportional to 305,907.87, 458,704.18 and 137,283.63 is: 205,854.72
Step by Step Solution
- Step 1: Write the proportion equation
305,907.87 : 458,704.18 = 137,283.63 : x - Step 2: Convert to fraction form
305,907.87/458,704.18 = 137,283.63/x - Step 3: Cross multiply
305,907.87x = 458,704.18 × 137,283.63 - Step 4: Simplify right side
305,907.87x = 62,972,576,669.19 - Step 5: Solve for x
x = 62,972,576,669.19/305,907.87 - Step 6: Final answer
x = 205,854.72
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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.