Finding the Fourth Proportional to 313,367.36, 432,440.25 and 170,126.15
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Solution
The fourth proportional to 313,367.36, 432,440.25 and 170,126.15 is: 234,770.45
Step by Step Solution
- Step 1: Write the proportion equation
313,367.36 : 432,440.25 = 170,126.15 : x - Step 2: Convert to fraction form
313,367.36/432,440.25 = 170,126.15/x - Step 3: Cross multiply
313,367.36x = 432,440.25 × 170,126.15 - Step 4: Simplify right side
313,367.36x = 73,569,394,837.54 - Step 5: Solve for x
x = 73,569,394,837.54/313,367.36 - Step 6: Final answer
x = 234,770.45
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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.