Finding the Fourth Proportional to 313,933.80, 470,890.26 and 136,441.02
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Solution
The fourth proportional to 313,933.80, 470,890.26 and 136,441.02 is: 204,656.99
Step by Step Solution
- Step 1: Write the proportion equation
313,933.80 : 470,890.26 = 136,441.02 : x - Step 2: Convert to fraction form
313,933.80/470,890.26 = 136,441.02/x - Step 3: Cross multiply
313,933.80x = 470,890.26 × 136,441.02 - Step 4: Simplify right side
313,933.80x = 64,248,747,382.47 - Step 5: Solve for x
x = 64,248,747,382.47/313,933.80 - Step 6: Final answer
x = 204,656.99
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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.