Finding the Fourth Proportional to 373,199.05, 515,015.58 and 212,107.60
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Solution
The fourth proportional to 373,199.05, 515,015.58 and 212,107.60 is: 292,708.99
Step by Step Solution
- Step 1: Write the proportion equation
373,199.05 : 515,015.58 = 212,107.60 : x - Step 2: Convert to fraction form
373,199.05/515,015.58 = 212,107.60/x - Step 3: Cross multiply
373,199.05x = 515,015.58 × 212,107.60 - Step 4: Simplify right side
373,199.05x = 109,238,718,636.41 - Step 5: Solve for x
x = 109,238,718,636.41/373,199.05 - Step 6: Final answer
x = 292,708.99
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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.