Finding the Fourth Proportional to 393,797.19, 543,507.95 and 228,201.94
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Solution
The fourth proportional to 393,797.19, 543,507.95 and 228,201.94 is: 314,957.98
Step by Step Solution
- Step 1: Write the proportion equation
393,797.19 : 543,507.95 = 228,201.94 : x - Step 2: Convert to fraction form
393,797.19/543,507.95 = 228,201.94/x - Step 3: Cross multiply
393,797.19x = 543,507.95 × 228,201.94 - Step 4: Simplify right side
393,797.19x = 124,029,568,595.42 - Step 5: Solve for x
x = 124,029,568,595.42/393,797.19 - Step 6: Final answer
x = 314,957.98
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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.