Finding the Fourth Proportional to 313,213.42, 432,237.69 and 169,974.70
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Solution
The fourth proportional to 313,213.42, 432,237.69 and 169,974.70 is: 234,566.81
Step by Step Solution
- Step 1: Write the proportion equation
313,213.42 : 432,237.69 = 169,974.70 : x - Step 2: Convert to fraction form
313,213.42/432,237.69 = 169,974.70/x - Step 3: Cross multiply
313,213.42x = 432,237.69 × 169,974.70 - Step 4: Simplify right side
313,213.42x = 73,469,471,686.44 - Step 5: Solve for x
x = 73,469,471,686.44/313,213.42 - Step 6: Final answer
x = 234,566.81
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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.