Finding the Fourth Proportional to 313,620.30, 432,795.29 and 170,379.09
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Solution
The fourth proportional to 313,620.30, 432,795.29 and 170,379.09 is: 235,122.75
Step by Step Solution
- Step 1: Write the proportion equation
313,620.30 : 432,795.29 = 170,379.09 : x - Step 2: Convert to fraction form
313,620.30/432,795.29 = 170,379.09/x - Step 3: Cross multiply
313,620.30x = 432,795.29 × 170,379.09 - Step 4: Simplify right side
313,620.30x = 73,739,266,814.59 - Step 5: Solve for x
x = 73,739,266,814.59/313,620.30 - Step 6: Final answer
x = 235,122.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.