Finding the Fourth Proportional to 289,733.10, 434,533.20 and 79,387.44
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Solution
The fourth proportional to 289,733.10, 434,533.20 and 79,387.44 is: 119,062.95
Step by Step Solution
- Step 1: Write the proportion equation
289,733.10 : 434,533.20 = 79,387.44 : x - Step 2: Convert to fraction form
289,733.10/434,533.20 = 79,387.44/x - Step 3: Cross multiply
289,733.10x = 434,533.20 × 79,387.44 - Step 4: Simplify right side
289,733.10x = 34,496,478,343.01 - Step 5: Solve for x
x = 34,496,478,343.01/289,733.10 - Step 6: Final answer
x = 119,062.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.