Finding the Fourth Proportional to 287,010.99, 430,235.42 and 106,964.60
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Solution
The fourth proportional to 287,010.99, 430,235.42 and 106,964.60 is: 160,342.14
Step by Step Solution
- Step 1: Write the proportion equation
287,010.99 : 430,235.42 = 106,964.60 : x - Step 2: Convert to fraction form
287,010.99/430,235.42 = 106,964.60/x - Step 3: Cross multiply
287,010.99x = 430,235.42 × 106,964.60 - Step 4: Simplify right side
287,010.99x = 46,019,956,920.13 - Step 5: Solve for x
x = 46,019,956,920.13/287,010.99 - Step 6: Final answer
x = 160,342.14
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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.