Finding the Fourth Proportional to 282,346.29, 389,638.49 and 155,029.95
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Solution
The fourth proportional to 282,346.29, 389,638.49 and 155,029.95 is: 213,941.66
Step by Step Solution
- Step 1: Write the proportion equation
282,346.29 : 389,638.49 = 155,029.95 : x - Step 2: Convert to fraction form
282,346.29/389,638.49 = 155,029.95/x - Step 3: Cross multiply
282,346.29x = 389,638.49 × 155,029.95 - Step 4: Simplify right side
282,346.29x = 60,405,634,847.63 - Step 5: Solve for x
x = 60,405,634,847.63/282,346.29 - Step 6: Final answer
x = 213,941.66
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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.