Finding the Fourth Proportional to 394,865.15, 592,297.26 and 128,625.23
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Solution
The fourth proportional to 394,865.15, 592,297.26 and 128,625.23 is: 192,937.70
Step by Step Solution
- Step 1: Write the proportion equation
394,865.15 : 592,297.26 = 128,625.23 : x - Step 2: Convert to fraction form
394,865.15/592,297.26 = 128,625.23/x - Step 3: Cross multiply
394,865.15x = 592,297.26 × 128,625.23 - Step 4: Simplify right side
394,865.15x = 76,184,373,017.79 - Step 5: Solve for x
x = 76,184,373,017.79/394,865.15 - Step 6: Final answer
x = 192,937.70
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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.