Finding the Fourth Proportional to 280,124.06, 420,185.79 and 102,644.96
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Solution
The fourth proportional to 280,124.06, 420,185.79 and 102,644.96 is: 153,967.33
Step by Step Solution
- Step 1: Write the proportion equation
280,124.06 : 420,185.79 = 102,644.96 : x - Step 2: Convert to fraction form
280,124.06/420,185.79 = 102,644.96/x - Step 3: Cross multiply
280,124.06x = 420,185.79 × 102,644.96 - Step 4: Simplify right side
280,124.06x = 43,129,951,506.19 - Step 5: Solve for x
x = 43,129,951,506.19/280,124.06 - Step 6: Final answer
x = 153,967.33
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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.