Finding the Fourth Proportional to 289,880.01, 399,832.02 and 280,125.99
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Solution
The fourth proportional to 289,880.01, 399,832.02 and 280,125.99 is: 386,378.28
Step by Step Solution
- Step 1: Write the proportion equation
289,880.01 : 399,832.02 = 280,125.99 : x - Step 2: Convert to fraction form
289,880.01/399,832.02 = 280,125.99/x - Step 3: Cross multiply
289,880.01x = 399,832.02 × 280,125.99 - Step 4: Simplify right side
289,880.01x = 112,003,340,436.20 - Step 5: Solve for x
x = 112,003,340,436.20/289,880.01 - Step 6: Final answer
x = 386,378.28
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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.