Finding the Fourth Proportional to 351,551.70, 485,171.19 and 198,617.94
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Solution
The fourth proportional to 351,551.70, 485,171.19 and 198,617.94 is: 274,109.62
Step by Step Solution
- Step 1: Write the proportion equation
351,551.70 : 485,171.19 = 198,617.94 : x - Step 2: Convert to fraction form
351,551.70/485,171.19 = 198,617.94/x - Step 3: Cross multiply
351,551.70x = 485,171.19 × 198,617.94 - Step 4: Simplify right side
351,551.70x = 96,363,702,305.15 - Step 5: Solve for x
x = 96,363,702,305.15/351,551.70 - Step 6: Final answer
x = 274,109.62
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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.