Finding the Fourth Proportional to 285,780.15, 394,554.84 and 183,981.99
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Solution
The fourth proportional to 285,780.15, 394,554.84 and 183,981.99 is: 254,009.89
Step by Step Solution
- Step 1: Write the proportion equation
285,780.15 : 394,554.84 = 183,981.99 : x - Step 2: Convert to fraction form
285,780.15/394,554.84 = 183,981.99/x - Step 3: Cross multiply
285,780.15x = 394,554.84 × 183,981.99 - Step 4: Simplify right side
285,780.15x = 72,590,984,627.33 - Step 5: Solve for x
x = 72,590,984,627.33/285,780.15 - Step 6: Final answer
x = 254,009.89
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1.5x scale
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.