Finding the Fourth Proportional to 331,118.87, 457,031.91 and 203,901.08
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Solution
The fourth proportional to 331,118.87, 457,031.91 and 203,901.08 is: 281,437.60
Step by Step Solution
- Step 1: Write the proportion equation
331,118.87 : 457,031.91 = 203,901.08 : x - Step 2: Convert to fraction form
331,118.87/457,031.91 = 203,901.08/x - Step 3: Cross multiply
331,118.87x = 457,031.91 × 203,901.08 - Step 4: Simplify right side
331,118.87x = 93,189,300,043.46 - Step 5: Solve for x
x = 93,189,300,043.46/331,118.87 - Step 6: Final answer
x = 281,437.60
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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.