Finding the Fourth Proportional to 351,703.38, 485,371.18 and 198,737.68
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Solution
The fourth proportional to 351,703.38, 485,371.18 and 198,737.68 is: 274,269.59
Step by Step Solution
- Step 1: Write the proportion equation
351,703.38 : 485,371.18 = 198,737.68 : x - Step 2: Convert to fraction form
351,703.38/485,371.18 = 198,737.68/x - Step 3: Cross multiply
351,703.38x = 485,371.18 × 198,737.68 - Step 4: Simplify right side
351,703.38x = 96,461,542,252.06 - Step 5: Solve for x
x = 96,461,542,252.06/351,703.38 - Step 6: Final answer
x = 274,269.59
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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.