Finding the Fourth Proportional to 305,149.11, 421,130.61 and 169,225.65
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Solution
The fourth proportional to 305,149.11, 421,130.61 and 169,225.65 is: 233,545.17
Step by Step Solution
- Step 1: Write the proportion equation
305,149.11 : 421,130.61 = 169,225.65 : x - Step 2: Convert to fraction form
305,149.11/421,130.61 = 169,225.65/x - Step 3: Cross multiply
305,149.11x = 421,130.61 × 169,225.65 - Step 4: Simplify right side
305,149.11x = 71,266,101,212.15 - Step 5: Solve for x
x = 71,266,101,212.15/305,149.11 - Step 6: Final answer
x = 233,545.17
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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.