Finding the Fourth Proportional to 393,021.59, 589,310.93 and 136,736.63
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Solution
The fourth proportional to 393,021.59, 589,310.93 and 136,736.63 is: 205,027.90
Step by Step Solution
- Step 1: Write the proportion equation
393,021.59 : 589,310.93 = 136,736.63 : x - Step 2: Convert to fraction form
393,021.59/589,310.93 = 136,736.63/x - Step 3: Cross multiply
393,021.59x = 589,310.93 × 136,736.63 - Step 4: Simplify right side
393,021.59x = 80,580,391,103.13 - Step 5: Solve for x
x = 80,580,391,103.13/393,021.59 - Step 6: Final answer
x = 205,027.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.