Finding the Fourth Proportional to 386,604.70, 533,488.84 and 214,511.75
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Solution
The fourth proportional to 386,604.70, 533,488.84 and 214,511.75 is: 296,011.99
Step by Step Solution
- Step 1: Write the proportion equation
386,604.70 : 533,488.84 = 214,511.75 : x - Step 2: Convert to fraction form
386,604.70/533,488.84 = 214,511.75/x - Step 3: Cross multiply
386,604.70x = 533,488.84 × 214,511.75 - Step 4: Simplify right side
386,604.70x = 114,439,627,678.23 - Step 5: Solve for x
x = 114,439,627,678.23/386,604.70 - Step 6: Final answer
x = 296,011.99
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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.