Finding the Fourth Proportional to 278,021.16, 417,161.34 and 165,696.84
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Solution
The fourth proportional to 278,021.16, 417,161.34 and 165,696.84 is: 248,622.50
Step by Step Solution
- Step 1: Write the proportion equation
278,021.16 : 417,161.34 = 165,696.84 : x - Step 2: Convert to fraction form
278,021.16/417,161.34 = 165,696.84/x - Step 3: Cross multiply
278,021.16x = 417,161.34 × 165,696.84 - Step 4: Simplify right side
278,021.16x = 69,122,315,808.17 - Step 5: Solve for x
x = 69,122,315,808.17/278,021.16 - Step 6: Final answer
x = 248,622.50
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1.5x scale
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.