Finding the Fourth Proportional to 351,551.75, 485,180.84 and 198,599.79
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Solution
The fourth proportional to 351,551.75, 485,180.84 and 198,599.79 is: 274,089.99
Step by Step Solution
- Step 1: Write the proportion equation
351,551.75 : 485,180.84 = 198,599.79 : x - Step 2: Convert to fraction form
351,551.75/485,180.84 = 198,599.79/x - Step 3: Cross multiply
351,551.75x = 485,180.84 × 198,599.79 - Step 4: Simplify right side
351,551.75x = 96,356,812,936.02 - Step 5: Solve for x
x = 96,356,812,936.02/351,551.75 - Step 6: Final answer
x = 274,089.99
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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.