Finding the Fourth Proportional to 313,728.58, 470,651.19 and 103,374.82
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Solution
The fourth proportional to 313,728.58, 470,651.19 and 103,374.82 is: 155,081.45
Step by Step Solution
- Step 1: Write the proportion equation
313,728.58 : 470,651.19 = 103,374.82 : x - Step 2: Convert to fraction form
313,728.58/470,651.19 = 103,374.82/x - Step 3: Cross multiply
313,728.58x = 470,651.19 × 103,374.82 - Step 4: Simplify right side
313,728.58x = 48,653,482,049.04 - Step 5: Solve for x
x = 48,653,482,049.04/313,728.58 - Step 6: Final answer
x = 155,081.45
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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.