Finding the Fourth Proportional to 313,512.97, 470,121.30 and 121,477.36
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Solution
The fourth proportional to 313,512.97, 470,121.30 and 121,477.36 is: 182,158.63
Step by Step Solution
- Step 1: Write the proportion equation
313,512.97 : 470,121.30 = 121,477.36 : x - Step 2: Convert to fraction form
313,512.97/470,121.30 = 121,477.36/x - Step 3: Cross multiply
313,512.97x = 470,121.30 × 121,477.36 - Step 4: Simplify right side
313,512.97x = 57,109,094,403.77 - Step 5: Solve for x
x = 57,109,094,403.77/313,512.97 - Step 6: Final answer
x = 182,158.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.