Finding the Fourth Proportional to 280,160.96, 386,553.12 and 171,237.44
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Solution
The fourth proportional to 280,160.96, 386,553.12 and 171,237.44 is: 236,265.49
Step by Step Solution
- Step 1: Write the proportion equation
280,160.96 : 386,553.12 = 171,237.44 : x - Step 2: Convert to fraction form
280,160.96/386,553.12 = 171,237.44/x - Step 3: Cross multiply
280,160.96x = 386,553.12 × 171,237.44 - Step 4: Simplify right side
280,160.96x = 66,192,366,692.81 - Step 5: Solve for x
x = 66,192,366,692.81/280,160.96 - Step 6: Final answer
x = 236,265.49
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1.5x scale
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.