Finding the Fourth Proportional to 383,893.68, 529,769.77 and 211,813.23
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Solution
The fourth proportional to 383,893.68, 529,769.77 and 211,813.23 is: 292,300.32
Step by Step Solution
- Step 1: Write the proportion equation
383,893.68 : 529,769.77 = 211,813.23 : x - Step 2: Convert to fraction form
383,893.68/529,769.77 = 211,813.23/x - Step 3: Cross multiply
383,893.68x = 529,769.77 × 211,813.23 - Step 4: Simplify right side
383,893.68x = 112,212,244,617.21 - Step 5: Solve for x
x = 112,212,244,617.21/383,893.68 - Step 6: Final answer
x = 292,300.32
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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.