Finding the Fourth Proportional to 251,745.81, 347,409.32 and 138,567.75
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Solution
The fourth proportional to 251,745.81, 347,409.32 and 138,567.75 is: 191,223.55
Step by Step Solution
- Step 1: Write the proportion equation
251,745.81 : 347,409.32 = 138,567.75 : x - Step 2: Convert to fraction form
251,745.81/347,409.32 = 138,567.75/x - Step 3: Cross multiply
251,745.81x = 347,409.32 × 138,567.75 - Step 4: Simplify right side
251,745.81x = 48,139,727,108.59 - Step 5: Solve for x
x = 48,139,727,108.59/251,745.81 - Step 6: Final answer
x = 191,223.55
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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.