Finding the Fourth Proportional to 266,749.32, 399,553.68 and 215,928.84
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Solution
The fourth proportional to 266,749.32, 399,553.68 and 215,928.84 is: 323,431.61
Step by Step Solution
- Step 1: Write the proportion equation
266,749.32 : 399,553.68 = 215,928.84 : x - Step 2: Convert to fraction form
266,749.32/399,553.68 = 215,928.84/x - Step 3: Cross multiply
266,749.32x = 399,553.68 × 215,928.84 - Step 4: Simplify right side
266,749.32x = 86,275,162,640.13 - Step 5: Solve for x
x = 86,275,162,640.13/266,749.32 - Step 6: Final answer
x = 323,431.61
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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.