Finding the Fourth Proportional to 437,587.70, 656,381.55 and 105,163.70
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Solution
The fourth proportional to 437,587.70, 656,381.55 and 105,163.70 is: 157,745.55
Step by Step Solution
- Step 1: Write the proportion equation
437,587.70 : 656,381.55 = 105,163.70 : x - Step 2: Convert to fraction form
437,587.70/656,381.55 = 105,163.70/x - Step 3: Cross multiply
437,587.70x = 656,381.55 × 105,163.70 - Step 4: Simplify right side
437,587.70x = 69,027,512,409.74 - Step 5: Solve for x
x = 69,027,512,409.74/437,587.70 - Step 6: Final answer
x = 157,745.55
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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.