Finding the Fourth Proportional to 355,826.51, 490,992.08 and 212,556.14
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Solution
The fourth proportional to 355,826.51, 490,992.08 and 212,556.14 is: 293,298.50
Step by Step Solution
- Step 1: Write the proportion equation
355,826.51 : 490,992.08 = 212,556.14 : x - Step 2: Convert to fraction form
355,826.51/490,992.08 = 212,556.14/x - Step 3: Cross multiply
355,826.51x = 490,992.08 × 212,556.14 - Step 4: Simplify right side
355,826.51x = 104,363,380,232.59 - Step 5: Solve for x
x = 104,363,380,232.59/355,826.51 - Step 6: Final answer
x = 293,298.50
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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.