Finding the Fourth Proportional to 305,097.84, 421,033.86 and 170,961.84
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Solution
The fourth proportional to 305,097.84, 421,033.86 and 170,961.84 is: 235,926.69
Step by Step Solution
- Step 1: Write the proportion equation
305,097.84 : 421,033.86 = 170,961.84 : x - Step 2: Convert to fraction form
305,097.84/421,033.86 = 170,961.84/x - Step 3: Cross multiply
305,097.84x = 421,033.86 × 170,961.84 - Step 4: Simplify right side
305,097.84x = 71,980,723,407.90 - Step 5: Solve for x
x = 71,980,723,407.90/305,097.84 - Step 6: Final answer
x = 235,926.69
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1.5x scale
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.